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Abhishek Mishra asked a question
Subject: Math, 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: Math, 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: Math, 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.
Shourya Darshan asked a question
Subject: Math, asked on on 15/11/17
Q no. 37 pls solve anyone
Akbar Khan asked a question
Subject: Math, asked on on 13/8/17
11 question pls
Dhruv Rajgaria asked a question
Subject: Math, 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
Akash Das Gupta asked a question
Subject: Math, 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.
Kritika Dudpuri asked a question
Subject: Math, asked on on 27/11/18
( sin 29° 31') ÷ (cos 60° 29')
Rajat asked a question
Subject: Math, 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.
 
Rubina asked a question
Subject: Math, asked on on 20/10/17
qs 41 plzz
Q.41. 1-cos A1+cos A=sin A1+cos A
Artha Potdar asked a question
Subject: Math, asked on on 12/3/18
Prove that: Tan20tan30tan40tan80=1
Jayanth asked a question
Subject: Math, asked on on 29/7/18
if tan theta + cot theta equals to 2 then sin theta equals to
Smrithi Pillai asked a question
Subject: Math, asked on on 11/4/19
A boy of 1.6 metre tall is 20 metre away from the tower and observes the angle of elevation of the top of the tower to be (i)45 degree (ii) 60 degree. Find the height of the tower in each case.
Debargha Das asked a question
Subject: Math, asked on on 21/7/18
value of tan 12 degree 20 minute
Ani Sarkar asked a question
Subject: Math, asked on on 27/9/19
Please solve question no.26.i.ii.iii..
Khushboo asked a question
Subject: Math, asked on on 15/2/18
sin 60 degree / cos^2 45 degree - 3 tan 30 degree + 5 cos 90 degree
Ani Sarkar asked a question
Subject: Math, asked on on 29/9/19
Please solve question no.2.
Akbar Khan asked a question
Subject: Math, asked on on 13/8/17
Q12 pls
Savikaran asked a question
Subject: Math, asked on on 2/10/19
Plz solve q 9
Abhishek Singh asked a question
Subject: Math, asked on on 28/10/18
If sin (x-2y) = cos (4y-x), then the value of cot 2y is:
Aditya Agarwal asked a question
Subject: Math, asked on on 16/10/19
Trigonometry ques pls ans
Sanjani asked a question
Subject: Math, 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
Mehul Srivastava asked a question
Subject: Math, asked on on 11/11/19
Plz answer the following question
Ashadip Ghosh asked a question
Subject: Math, asked on on 4/8/17
Q n 15
Aditya Prashant Verat asked a question
Subject: Math, asked on on 7/12/19
Questions v & vi
Jayanth asked a question
Subject: Math, asked on on 30/7/18
If cot theta + cosec theta equals to 5 then cos theta equals to
Jayanth asked a question
Subject: Math, asked on on 29/7/18
if a 4 sin theta + 3 cos theta equal to 5 then tan theta equals to
Sumedha Ghosh Chowdhury asked a question
Subject: Math, 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
Agniroop Saha asked a question
Subject: Math, asked on on 17/12/18
In the adjoining figure,ABCD is a rectangle.Its diagonal AC =15 cm and

Garima Singh asked a question
Subject: Math, asked on on 13/9/17
Solve this:
7. Find AB. 
     
Sraboni Chakraborty asked a question
Subject: Math, asked on on 29/6/19
Without using trigonometrical tables evaluate: (tan 30?/tan 60?)*2 -2(sin 30?/cos 60?)*2
Raju asked a question
Subject: Math, asked on on 20/7/18
If 1+sinx = 9cosx then 5(1-cosx)=
Ani Sarkar asked a question
Subject: Math, asked on on 28/9/19
Please solve question no.29
Aditya asked a question
Subject: Math, asked on on 10/9/17
Plz do thi
Savikaran asked a question
Subject: Math, asked on on 30/9/19
Plz solve q 6
Anwesha Ghosh asked a question
Subject: Math, asked on on 8/1/18
sin square 28 degrees minus cos square 62 degrees is equal two 0 prove it
Ani Sarkar asked a question
Subject: Math, asked on on 2/10/19
Please solve question no.8.
Shruti Narendra Singh Chauhan asked a question
Subject: Math, asked on on 17/10/19
if cos theta is equal to root 5 find the value of 2 + 1 upon sin square theta minus cos square theta upon sin square theta
Akbar Ali Agwan asked a question
Subject: Math, asked on on 25/4/18
Please solve 8c(i,ii)
Anitha Thomas asked a question
Subject: Math, asked on on 15/11/19
If sinA=cosA find the value of 2tan^2- 2sec^2A+5
Saksham Mahato asked a question
Subject: Math, 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.
Aditya Prashant Verat asked a question
Subject: Math, asked on on 8/12/19
Q no 3 (I)
Deepak asked a question
Subject: Math, 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
Ravi Munda asked a question
Subject: Math, asked on on 21/5/18
If SinQ =3/5 and Q is an acute angle Find : (1) CosQ ,(2) tanQ
Jayanth asked a question
Subject: Math, asked on on 30/7/18
if 3 sin theta + 5 cos theta equals to 5 then 5 sin theta minus 3 cos theta equals to
Anwesha Ghosh asked a question
Subject: Math, 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°
Vamsee Yashwanth asked a question
Subject: Math, 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
Wekshitha Alapati asked a question
Subject: Math, 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
Mounisha asked a question
Subject: Math, asked on on 5/8/19
from the top of a Lighthouse 60 metres height with its base at the sea level the angle of depression of a Boat is 15 degrees the distance of the boat from the foot of the Lighthouse is
Ani Sarkar asked a question
Subject: Math, asked on on 28/9/19
Please solve question no.28.a and 28b.
Jayanti Goswami asked a question
Subject: Math, 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 ?
Savikaran asked a question
Subject: Math, asked on on 30/9/19
Plz solve q 7
Akbar Ali Agwan asked a question
Subject: Math, 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. 
Ani Sarkar asked a question
Subject: Math, asked on on 2/10/19
Please solve question no.7,8 ,12,13 and10
Suraj Shekhar Sahu asked a question
Subject: Math, 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

 
Artika asked a question
Subject: Math, asked on on 19/10/19
Solve both the question
Jayanth asked a question
Subject: Math, asked on on 30/7/18
if sec theta - tan theta equals to 4 by 3 then sin theta equals to
Arushi Yadav asked a question
Subject: Math, asked on on 16/11/19
Solve the trignometry equation.
Priyanka Das asked a question
Subject: Math, asked on on 8/12/18
15x=?,prove that cos x cos 2x cos 3x cos 4x cos 5x cos6x cos7x=1/2^7
Aditya Prashant Verat asked a question
Subject: Math, asked on on 8/12/19
Question no 17 ii
Ravi Prakash asked a question
Subject: Math, 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
Rahul asked a question
Subject: Math, asked on on 24/12/17
In the given figure ; AD is erpendicular to BC , tan B=3/4 , tanC=5/12 and BC=56 cm. Calculate the length of AD.
Rudranshu asked a question
Subject: Math, asked on on 20/11/17
sin 59 + tan 63°                    
Vamsee Yashwanth asked a question
Subject: Math, asked on on 27/12/18
Can anyone help me with this question

Evaluate
Sec26 sin 64 + cosec33/sec57
Ridhima asked a question
Subject: Math, 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
Priyanshi asked a question
Subject: Math, asked on on 7/9/19
Please tell question 7,2
Harshini asked a question
Subject: Math, 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
Ani Sarkar asked a question
Subject: Math, asked on on 28/9/19
Please solve question no.27.
Superb Bhavesh Kaushik asked a question
Subject: Math, asked on on 7/9/17
Valueof x in degree
Ani Sarkar asked a question
Subject: Math, asked on on 30/9/19
Please solve question no.3.
Yuvraj Kumar Sah asked a question
Subject: Math, asked on on 9/3/20
please please please help solve it fast
Savikaran asked a question
Subject: Math, asked on on 6/10/19
Plz solve q 11 first part
Suryansh Kauntey asked a question
Subject: Math, asked on on 30/11/18
Q 3 (i) and (ii)
Savikaran asked a question
Subject: Math, asked on on 28/10/19
Solve q 1both parts
Divyanshi Rana asked a question
Subject: Math, asked on on 20/10/18
Pls do this question fast.
Mayank Singh Bisht asked a question
Subject: Math, asked on on 18/11/19
Please solve q4.
Kritika Dudpuri asked a question
Subject: Math, asked on on 27/11/18
[ ( sin 28°54')÷(sec 61° 6') ] + [ ( cos 28° 54' ) ÷ cosec 61° 6']
Sarah Kohli asked a question
Subject: Math, asked on on 15/1/20
Dear experts ,
Please solve the following
Sambit Mallick asked a question
Subject: Math, asked on on 7/6/18
prove that (1+cos A)/sin2A=1/(1-cos A)
Legend Vishal asked a question
Subject: Math, asked on on 28/1/18
Please solve the question 6,7
Q.(vi) sin60°-θ=cos(30°+θ)
[Hint. LHS = sin90°-30°+θ]
(vii) sinθsin90°-θ+cosθcos90°-θ
Saksham Mahato asked a question
Subject: Math, asked on on 20/9/17
Pls. Solve Qn.No. 14
Om Khatri asked a question
Subject: Math, asked on on 22/9/18
Sum 29b please
Bishakha Bhattacharjee asked a question
Subject: Math, asked on on 23/7/18
Sir/Madam can you please solve question no. 17
Anas Aftab asked a question
Subject: Math, 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
Akbar Ali Agwan asked a question
Subject: Math, asked on on 25/4/18
Please solve 8c(ii)
Ani Sarkar asked a question
Subject: Math, asked on on 26/9/19
Please solve question no.21.
Saakshi Gudgud asked a question
Subject: Math, 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
Ani Sarkar asked a question
Subject: Math, asked on on 29/9/19
Please solve question no.33.
Saakshi Gudgud asked a question
Subject: Math, 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
Ani Sarkar asked a question
Subject: Math, asked on on 30/9/19
Please solve question no.4.
Savikaran asked a question
Subject: Math, asked on on 7/10/19
11 second part
Jayanth asked a question
Subject: Math, asked on on 30/7/18
cos theta - sin theta equals to root 2 Sin Theta then cos theta + sin theta equals to
Savikaran asked a question
Subject: Math, asked on on 28/10/19
Plz solve this eqn
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