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What is the value of [(sin x + sin y) (sin x – sin y)]/[(cosx + cosy) (cosy – cosx)]?
In a right triangle ABC, angle B = 90°. If tan A = 3/4 and the length of the hypotenuse is 25 cm, find the area of the triangle.
If sec A + tan A = 3 then the value of cot A is:
If 1 + sin 2θ = p2 and sin3 θ + cos3 θ = q then Which of the following is true ?
1. q3 – 2p + ...
If 0 ≤ θ ≤ 90°, and sin(2 θ +50°) = cos (4 θ + 16°), then what is the value of θ (in degrees)?
If 2sin y + cos y = √3 sin y, then find the value of tan y
cos (sec-1 x) is equal to –
If 7sin² ϕ + 3cos² ϕ= 4, then find the value of ϕ ?
If cot8A = tan(A+8˚), find the value of A? Given that 8A and A+8 are acute angles.
