The volume of a cone with a height equal to the radius

 If sec theta - tan theta = 1/3, then sec theta + tan theta is:

If (sin 3A sec 6A = 1) , then what will be the value of cos 6A?

Evaluate the following:

sin 25° × cos 65° + sin 65° × cos 25°

Find the value of the given expression.

2 × (sin 30° + tan 45°)

Calculate the value of sec75^o

If tan A = 1, then what will be the value of sec² A + cosec² A?

If cot A = √3, then what will be the value of sin⁴ A?

If cos² x + sin x = 5/4, then find the value of 'sin x'.