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Subject: Maths, asked 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.



 

Subject: Maths, asked 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.

Subject: Maths, asked on 21/7/18

value of tan 12 degree 20 minute

Subject: Maths, asked on 16/12/18

If 12sin theta = 35cos theta, find the value of (sin theta - cos theta)/(sin theta + cos theta) 

Subject: Maths, asked on 13/8/17

11 question pls

Subject: Maths, asked 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.

Subject: Maths, asked 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

Subject: Maths, asked on 15/2/18

sin 60 degree / cos^2 45 degree - 3 tan 30 degree + 5 cos 90 degree

Subject: Maths, asked on 12/3/18

Prove that: Tan20tan30tan40tan80=1

Subject: Maths, asked on 28/10/18

If sin (x-2y) = cos (4y-x), then the value of cot 2y is:

Subject: Maths, asked on 29/7/18

if tan theta + cot theta equals to 2 then sin theta equals to

Subject: Maths, asked on 13/8/17

Q12 pls

Subject: Maths, asked 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

Subject: Maths, asked on 27/11/18

( sin 29° 31') ÷ (cos 60° 29')

Subject: Maths, asked on 30/7/18

If cot theta + cosec theta equals to 5 then cos theta equals to

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