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Abhishek Mishra asked a question
Subject: Maths, asked on on 8/4/18
29.  In the adjoining figure, ABCD is a rectangle.  Its diagonal AC =  15 cm and ∠ACD = α.  If cot α=32 , find the perimeter and area of the rectangle.


30.  Using the measurements given in figure alongside,
(a) find the values of :
(1) sin ϕ (ii) tan θ.
(b) write an expression for AD in terms of θ.
Hint: (b) CD =  5. Draw DE perpendicular to AB, BE = 5, EA = 9.



 
Koninika Sen Athalye asked a question
Subject: Maths, asked on on 16/12/18
If 12sin theta = 35cos theta, find the value of (sin theta - cos theta)/(sin theta + cos theta) 
Lalitha Shree asked a question
Subject: Maths, asked on on 16/12/17
in the following figure ,ab=4 cm and ed=3cm and sin x = 3/5 and cos y =12/13 find the length of bd
Q.37. In the following figure, AB = 4 cm and ED = 3 m.


If sin α=35 and cos β=1213 find the length of BD.
Gargi Mishra asked a question
Subject: Maths, asked on on 21/3/20
In a right angled triangle ABC, right angled B, if cot A=1, prove that 2 sin A cos A=1.

Please answer step by step
Akbar Khan asked a question
Subject: Maths, asked on on 13/8/17
11 question pls
Kritika Dudpuri asked a question
Subject: Maths, asked on on 27/11/18
[ ( sin 28°54')÷(sec 61° 6') ] + [ ( cos 28° 54' ) ÷ cosec 61° 6']
Akash Das Gupta asked a question
Subject: Maths, asked on on 5/5/18
(xxi) If 2y cos θ = xsin θ and 2x sec θ - y cosec θ = 3, then what is the value of x2 + 4y2 ​?
(a) 2                (b) 1                 (c) 0                   (d) None of these.
(xxii) If tan θ + cot θ = 2, then the value of tan θ - cot θ is
(a) 1                (b) 2                 (c) - 1                 (d) None of these.
(xxiii) If 3 cos θ - 4 sin θ = 5, then the value of 3 sin θ + 4 cos θ is
(a) 1                (b)  2                (c) 0                    (d) None of these.
Bishakha Bhattacharjee asked a question
Subject: Maths, asked on on 23/7/18
Sir/Madam can you please solve question no. 19
Vamsee Yashwanth asked a question
Subject: Maths, asked on on 25/12/18
Can anyone solve this question

If cos 3x = 0 and x is acute ,
Find the value of
1. Sin x
2. Cos 2x
3. Cot square x-cosec square x
Dhruv Rajgaria asked a question
Subject: Maths, asked on on 14/9/18
In the figure(2) given below,triangle ABC is right angled at B and BD is perpendicular to AC.Find
i) cos angle CBD
ii) cot angle ABD
Aditi Patwal asked a question
Subject: Maths, asked on on 2/10/20
If 5 tan theta = 4 , find the value of( 5sin theta -3cos theta )/ (5 sin theta+2cos theta)
Artha Potdar asked a question
Subject: Maths, asked on on 12/3/18
Prove that: Tan20tan30tan40tan80=1
Kritika Dudpuri asked a question
Subject: Maths, asked on on 27/11/18
PROVE

tan 10° tan 15° tan 75° tan 80° = 1

 
Debargha Das asked a question
Subject: Maths, asked on on 21/7/18
value of tan 12 degree 20 minute
Vamsee Yashwanth asked a question
Subject: Maths, asked on on 27/12/18
Can anyone solve this question

In a triangle ABC
Angle b = 90 degrees
Sin a = 8/11

Show that
1.sec squareA-tan square A = 1
2.cot square A-cosec square A+1 = 0
Khushboo asked a question
Subject: Maths, asked on on 15/2/18
sin 60 degree / cos^2 45 degree - 3 tan 30 degree + 5 cos 90 degree
Anindita Sarkar asked a question
Subject: Maths, asked on on 26/9/19
Please solve question no.18.
Jayanth asked a question
Subject: Maths, asked on on 29/7/18
if tan theta + cot theta equals to 2 then sin theta equals to
Aditya Prashant Verat asked a question
Subject: Maths, asked on on 7/12/19
Question 5 i & ii
Akbar Khan asked a question
Subject: Maths, asked on on 13/8/17
Q12 pls
Anindita Sarkar asked a question
Subject: Maths, asked on on 26/1/20
Please solve question no.13.

ANSwer :2(root5 -1)/root5

(please don't send me any links)
Abhishek Singh asked a question
Subject: Maths, asked on on 28/10/18
If sin (x-2y) = cos (4y-x), then the value of cot 2y is:
Anindita Sarkar asked a question
Subject: Maths, asked on on 28/9/19
Please solve question no.28.a and 28b.
Sanjani asked a question
Subject: Maths, asked on on 10/9/18
if the length of each side of a rhombus is 8 cm and its one angle is 60 degree,then find the lengths of the diagonals of the rhombus
Krishna asked a question
Subject: Maths, asked on on 21/12/19
Kindly answer this quickly
Jayanth asked a question
Subject: Maths, asked on on 30/7/18
If cot theta + cosec theta equals to 5 then cos theta equals to
Anindita Sarkar asked a question
Subject: Maths, asked on on 31/1/20
Please solve question no.4.ii.(please don't send me any links....)and please explain the steps....
Ashadip Ghosh asked a question
Subject: Maths, asked on on 4/8/17
Q n 15
Ankita Kundu asked a question
Subject: Maths, asked on on 10/11/20
If 13 sin A=5 then evaluate: 5 sin A-2 cos A/ tan A
Sumedha Ghosh Chowdhury asked a question
Subject: Maths, asked on on 2/10/18
In the given figure , angle B = 60 o  , AB = 8 cm and BC = 25 cm . Calculate i) BE   ii) AC
Misty Singh asked a question
Subject: Maths, asked on on 28/8/18
solve question 3.ANSWER : 3 i)0, ii)3, iii)-117/20
Garima Singh asked a question
Subject: Maths, asked on on 13/9/17
Solve this:
7. Find AB. 
     
Anas Aftab asked a question
Subject: Maths, asked on on 1/2/19
In the adjoining figure ABC is a right angled triangle at B and ABD is a right angled triangle at A if BD is perpendicular to AC and BC is equal to 2?3 cm find the length AD
Anwesha Ghosh asked a question
Subject: Maths, asked on on 8/1/18
sin square 28 degrees minus cos square 62 degrees is equal two 0 prove it
Mehul Srivastava asked a question
Subject: Maths, asked on on 11/11/19
Plz answer the following question
Kritika Dudpuri asked a question
Subject: Maths, asked on on 27/11/18
( sin 29° 31') ÷ (cos 60° 29')
Krishna asked a question
Subject: Maths, asked on on 21/12/19
Kindly answer this quickly
Raju asked a question
Subject: Maths, asked on on 20/7/18
If 1+sinx = 9cosx then 5(1-cosx)=
Sanidhya Mishra asked a question
Subject: Maths, asked on on 3/2/20
4tan60?sec30?+sin 31?sec 59?+cot 59?cot 31?
????????????????
8 sin^2 30?- tan^2 45?
Experts please answer it urgent.
Aditya asked a question
Subject: Maths, asked on on 10/9/17
Plz do thi
Avneet Kaur asked a question
Subject: Maths, asked on on 13/12/20
if cos A + sec A =10/3  , find sin A + cot A
Akbar Ali Agwan asked a question
Subject: Maths, asked on on 25/4/18
Please solve 8c(i,ii)
Saksham Mahato asked a question
Subject: Maths, asked on on 19/9/17
Q11. If 13 sin  = 5, find the value of 5 sin θ - 2 cos θtan θ
Q12. If cot θ = 13, show that 1-cos2θ2-sin2θ=35
Q13. If sec θ = 135, show that 2 sin θ-3 cos θ4 sin θ - 9 cos θ=3.
Q14. If 3 tan θ = 4, show that 3 sin θ+2 cos θ3 sin θ - 2 cos θ=3.
Arushi Yadav asked a question
Subject: Maths, asked on on 16/11/19
Solve the trignometry equation.
Sraboni Chakraborty asked a question
Subject: Maths, asked on on 29/6/19
Without using trigonometrical tables evaluate: (tan 30?/tan 60?)*2 -2(sin 30?/cos 60?)*2
Purnima Kumari asked a question
Subject: Maths, asked on on 24/12/19
Pls solve no 12
Ravi Munda asked a question
Subject: Maths, asked on on 21/5/18
If SinQ =3/5 and Q is an acute angle Find : (1) CosQ ,(2) tanQ
Kripa Nayak asked a question
Subject: Maths, asked on on 14/2/20
Please provide all the formula for Trignometry chapter
Anwesha Ghosh asked a question
Subject: Maths, asked on on 8/1/18
12,13,14,15all the sub parts

​Q12. Without using trigonometrical tables, evaluate :


         (i) 2tan 35°cot 55°2 +cot 55°tan 35°-3sec 40°cosec 50°     (ii) sin 35°cos55°+cos 35°sin 55°cosec210°-tan280°


         (iii) sin234° + sin256° + 2 tan 18° tan 72° – cot2 30°.


Q13. Prove the following :


         (i) cos θsin 90°-θ+sin θcos 90°-θ=2   
   
   
         (ii) cos θ sin 90°-θ+ sin θ cos 90°-θ =1


         (iii) tan θtan 90°-θ+sin 90°-θcos θ=sec2θ.


Q14. Prove the following :


         (i) cos90°-Asin 90°-Atan 90°-A=1-cos2A


         (ii) sin90°-Acosec 90°-A+cos 90°-Asec 90°-A=1


Q15. Simplify the following :

         (i) cos θsin 90°-0+cos 90°-θsec 90°-θ-3 tan230°
Praveen Chandra Yadav asked a question
Subject: Maths, asked on on 9/3/19
Q2 experts give solution
Priyanka Das asked a question
Subject: Maths, asked on on 8/12/18
15x=?,prove that cos x cos 2x cos 3x cos 4x cos 5x cos6x cos7x=1/2^7
Arushi Yadav asked a question
Subject: Maths, asked on on 17/11/19
Please ans the 3rd question
Wekshitha Alapati asked a question
Subject: Maths, asked on on 27/9/17
If tan theta equal to 1 by root 7 then cosecant square theta minus secant square theta by co secant square theta + secant square theta equals to
Anindita Sarkar asked a question
Subject: Maths, asked on on 3/1/20
Please solve question no.14.
Rajat asked a question
Subject: Maths, asked on on 12/10/17
1. If sec A = cosec A and 0≤A≤90, state the value of A.
2. If tan θ = cot θ and 0≤θ≤90, State the value of  θ.
3. If sin x = cos y; write the relation between x and y, if both the angles x and y are acute.
 
Devansh Deep Gupta asked a question
Subject: Maths, asked on on 14/10/18
Experts please answer quickly
Akbar Ali Agwan asked a question
Subject: Maths, asked on on 25/4/18
Please solve 8c(i):



8 (c) In the figure (3) given below, AD is perpendicular to BC, BD=15 cm, sin B= 45 and tan C=1
(i) Calculate the lengths of AD, AB, DC and AC. 
Mayank Singh Bisht asked a question
Subject: Maths, asked on on 18/11/19
Please solve q4.
Jayanti Goswami asked a question
Subject: Maths, asked on on 9/10/17
Could someone help me solve these?

1. (Cos 13 + sin 13)/ (cos 13 - sin 13) = tan A 
    What is A?

2. (sin 20 cos 70 + cos 20 sin 70)/ (sin 23 cosec 23 + cos 23 sec 23)= ?

3. If tan a = 5/6 and tan b = 1/11, then what is the value of a + b ?
Sarah Kohli asked a question
Subject: Maths, asked on on 15/1/20
Dear experts ,
Please answer the following
Ravi Prakash asked a question
Subject: Maths, asked on on 19/2/20

EVALUATE THE FOLLOWING EXPRESSION WITHOUT USING TRIGONOMETRIC TABLES-
cot 30/ sec 30 + cosec 30/ tan 45 - cos245 + 2cos0/sin30
Siddhant Sp Singh asked a question
Subject: Maths, asked on on 22/7/20
Please help by proving this question
Jayanth asked a question
Subject: Maths, asked on on 30/7/18
if sec theta - tan theta equals to 4 by 3 then sin theta equals to
Yash Agrawal asked a question
Subject: Maths, asked on on 22/12/17
WHAT IS THE VALUE OF [COS^2(90-18)]
HOW TO GET THAT VALUE
Shivangi Joshi asked a question
Subject: Maths, asked on on 29/6/19
Evaluate: cos 22 degree upon sin 68 degrees
Suraj Shekhar Sahu asked a question
Subject: Maths, asked on on 14/3/18
In the figure, triangle ABC is right angled at B and BD is perpendicular to AC. Find cos angle CBD and cos angle ABD

 
Savikaran asked a question
Subject: Maths, asked on on 28/11/19
Plz solve q13
Harshini asked a question
Subject: Maths, asked on on 26/1/18
In triangle ABC, ∠B = 90°, AB = 40, AC + BC = 80. Find :
(i) sin A                    (ii) cos A              (iii) tan C
Darshan Patil asked a question
Subject: Maths, asked on on 15/1/20
How to solve
Rudranshu asked a question
Subject: Maths, asked on on 20/11/17
sin 59 + tan 63°                    
Syed Safwan Afzal asked a question
Subject: Maths, asked on on 11/1/18
tan square A-sin square A= sin square A?tan square A
Bhavesh Kaushik asked a question
Subject: Maths, asked on on 7/9/17
Valueof x in degree
Vamsee Yashwanth asked a question
Subject: Maths, asked on on 27/12/18
Can anyone help me with this question

Evaluate:
cos40 cosec50 + sin50 sec40
Ridhima asked a question
Subject: Maths, asked on on 6/9/17
If x=a cos theeta + a sin theeta; y=a sin theeta - b cos theeta, prove that x2 + y2 = a2 + b2
Sarvagya Singh asked a question
Subject: Maths, asked on on 29/11/19
Please answer
Prove:-
tan20?.tan35?.tan55?.tan70?=1
Yuvraj Kumar Sah asked a question
Subject: Maths, asked on on 9/3/20
please please please help solve it fast
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Subject: Maths, asked on on 17/1/20
Please tell question 23
Suryansh Kauntey asked a question
Subject: Maths, asked on on 30/11/18
Q 3 (i) and (ii)
Aditi Patwal asked a question
Subject: Maths, asked on on 2/10/20
in the adjoining figure triangle ABC is right angled at B ,D is midpoint of BC , AC = 5 units , BC = 4 units and angle BAD = theta find the values of- 1) tan theta , 2) sin theta , 3) sin? theta + cos? theta
Divyanshi Rana asked a question
Subject: Maths, asked on on 20/10/18
Pls do this question fast.
Sambit Mallick asked a question
Subject: Maths, asked on on 7/6/18
prove that (1+cos A)/sin2A=1/(1-cos A)
Akbar Ali Agwan asked a question
Subject: Maths, asked on on 25/4/18
Please solve 8c(ii)
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Subject: Maths, asked on on 22/2/18
(sin 20/cos 20)^2+ ( cos 62 / sin 28)- sin^2 30
Bishakha Bhattacharjee asked a question
Subject: Maths, asked on on 23/7/18
Sir/Madam can you please solve question no. 17
Priyanka asked a question
Subject: Maths, asked on on 22/2/18
4/3tan^30 +sin^2 60-2cos^2 60 -2cos^2 60 +3/4 tan^60 -2tan ^2 45
Saksham Mahato asked a question
Subject: Maths, asked on on 20/9/17
Pls. Solve Qn.No. 14
Priyanka asked a question
Subject: Maths, asked on on 24/2/18
4/3 tan^2 30 +sin^2 60 -2cos^2 60 - 2cos^2 60 +3/4 tan^2 60 - 2 tan^ 2 45
Deepak asked a question
Subject: Maths, asked on on 16/11/17
how
Example.1. If a = cos 2 and b = sin 7, then
(a) a > 0, b > 0
(b) ab < 0
(c) a > b
(d) a < b
Priyanka asked a question
Subject: Maths, asked on on 24/2/18
Nol link plzz 4/3 tan^2 30 + sin^2 60 -2cos^2 60 -2cos^2 60 +3/4 tan^2 60 -2tan^2 45
Moksh Gudgud asked a question
Subject: Maths, asked on on 24/6/18
Meritnation expert I have my exam so it's very urgent.....so please help me with this question no. 17
Jayanth asked a question
Subject: Maths, asked on on 30/7/18
cos theta - sin theta equals to root 2 Sin Theta then cos theta + sin theta equals to
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Subject: Maths, asked on on 24/6/18
If x = a cos theta + b sin theta and y = a sin theta - b cos theta prove that x square + y square = a square + b square
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