Question

find the trigonometric ratio of sin 41pi/4​

Answer 1

Given

sin41π/4= sin1845

⇒ sin 1845° = 90° × 20 + 45°

1845° lies in the first quadrant in which the sine function is positive.

∴ sin 1845° = sin (90° × 20 + 45°)

= sin 45°

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