What is the base year currently used for the calculation

Given that 'θ' is an angle less than 120 ^° , what is the value of 'θ' if it satisfies the equation 3cos ² θ = 2 + sin ²

Find the maximum value of 18 sin A + 7 cos A.

sin² 7˚ + sin² 9˚ + sin² 11˚ + sin² 12˚ + ……… + sin² 83˚ = ?

If tan 3.5θ x tan 6.5θ = 1 then the value of tan 5θ is

What is the value of [tan² (90 – θ) – sin² (90 – θ)] cosec² (90 – θ) cot² (90 – θ)?

Simplify the following trigonometric expression: 12 cos 68° cosec 22° - 3 cot 72° cot 18°

Find the value of the given trigonometric expression:

(sin 10°cos 80° + cos²10°) × sin 30° + (cos 60°tan 45°) × sec 60°

If tan θ = 8/3 , then the value of (3Sinθ+2 Cosθ )/(3 Sinθ-2Cosθ) is