- If X = 15°, find the value of:
sin²(3X) + cos²(4X) - tan²(2X) Find the maximum value of 18 sin A + 7 cos A.
If tan² 45°- cos² 60° x sin 45° cos 45° cot 30°, then find the value of 'x'.
What is the value of 1/(1+tan 2 θ ) + 1 / (1+cot 2 θ ) = ?
...If x+ 1/x = 2cosθ, then the value of x³+ 1/x³ is
sin2 7 ° + sin2 8 ° + sin2 9 ° + sin2 10 ° + ……… + sin2 83 ° = ?
...If tanθ = 3/4 and θ is acute, find sinθ and cosθ, and verify that sin²θ + cos²θ = 1.
The minimum value of 12 sin θ + 5 cosθ is

Find the Value of Sin⁶`Theta` + Cos⁶`Theta` + 3Sin² `theta` Cos²`Theta`