The correct answer is B
If sin A = 3/5 and cos B = 4/5, where A and B are acute angles, find the value of sin(A + B).
If x = 4 cos A + 5 sin A snd y = 4 sin A – 5 cos A, then the value of x2+y2 is :
What is the value of [tan2 (90 – θ) – sin2 (90 – θ)] cosec2 (90 – θ) cot2 (90 – θ)?
...Simplify: sin (A + B) sin (A - B)
Solve for x in the interval [0, 2π]: 2 sin²x + 3 sinx - 2 = 0.
If sin(x + y) = 3/5 and cos(x - y) = 12/13, where x, y ∈ [0, π/2], find sin(2x) + sin(2y).
Find the value of sin265o + sin225o + cos235o + cos255o.
...Given that 'θ' is an angle less than 120°, what is the value of 'θ' if it satisfies the equation 7cos² θ = 1 + sin²θ?
If 1 + sin 2θ = p2 and sin3 θ + cos3 θ = q then Which of the following is true ?
1. q3 – 2p + ...
