Select the related word/letters/number from the given

Find the value of the given expression.

5 × (cos 60°)

If sin 23° = `12/13` , then tan 67° = ?

Evaluate 3sin x – 4 sin³ x and figure out the correct answer from below option ?

Simplify the following trigonometric expression:

What is the value of [(sin x + sin y) (sin x – sin y)]/[(cosx + cosy) (cosy – cosx)]?

If x = r sin A cos B, y = r sin A sin B and z = r cos A, then find x² + y² + z².

Find the value of the given trigonometric expression:

(sin 22°cos 68° + cos²22°) × sin 30° + (cos 60°tan 45°) × sec 60°

tan 20˚ x tan 23˚ x tan 67˚ x tan 70˚ = ?

Find the maximum value of 20 sin A + 9 cos A.