From the top of a tower of height 50 meters, the angle of depression to a point on the ground is 30°. Find the distance of the point from the base of the tower.

A 10-meter-long ladder leans against a vertical wall. The foot of the ladder is 6 meters away from the wall. What is the height at which the ladder touches the wall?

The value of cos 1° × cos 2° × cos 3° × ... × cos 89° is:

 If sin (A + B) = 1 and A = 2B, then the value of A and B is:

1. The angle of elevation of the Sun when the length of the shadow is equal to the height of an object is:

The height of a tower is 20m. The length of the shadow when the Sun’s elevation is 45° is:

If tan A = 1, then (sin² A - cos² A)

The value of cos²30° + sin²30° is:

The value of sin 30° × cos 60° + cos 30° × sin 60° is:

If cos A = 4/5, then the value of (sec² A - tan² A) is:

If sin A = 3/5, then the value of (1 + tan² A) / (1 + cot² A) is:

If sin A = 3/5, then cos A = ?