The correct answer is D
If 7sin² ϕ + 3cos² ϕ= 4, then find the value of ϕ ?
If x = r sin A cos B, y = r sin A sin B and z = r cos A, then find x² + y² + z².
A man is standing at a point 40 meters away from a tower. The angle of elevation of the top of the tower from the point is 45°. After walking 20 meters...
If cos(2θ) = 1 - 2sin²(θ) and tan(θ) + cot(θ) = k, find the value of k when sin(θ) = 3/5.
If sin 28° = 15/17 , then tan 62° = ?
The maximum value of 45 sin θ + 28 cos θ is:
Find the value of `1/2` cosec 10 - `2/(cosec 70)` ?
if 7 sin 2 x + 2 cos 2 x = 4 then find tan x
If cos θ + sec θ = √2, then the value of cos³ θ+ sec³ θ is:
