Question

(90-theta) what answer​

Answer 1

Step-by-step explanation:

Let a rotating line OA rotates about O in the anti-clockwise direction, from initial position to ending position makes an angle ∠XOA = θ again the same rotating line rotates in the same direction and makes an angle ∠AOB =90°.

Trigonometrical Ratios of (90° + θ)

Diagram 1

Trigonometrical Ratios of (90° + θ)

Diagram 2

Trigonometrical Ratios of (90° + θ)

Diagram 3

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