Assertion (A) : In a right angle triangle ABC, ∠B = 90°. Therefore the value of cos (A + C) is equal to 0. Reason (R) : A + B + C = 180° and cos 90° = 0.

Trigonometric Ratios of 90 Degrees

The value of cos 1° cos 2° ⋯ cos 90° is:

MCQ (Single)Trigonometric Ratios of 90 Degrees

Assertion (A): The value of sin 90° = 0. Reason (R): The value of cos 90° = 0

Assertion-ReasonTrigonometric Ratios of 90 Degrees