Find the values of the following trigonometric ratios:
Given 
⇒ 1755° = 90° × 19 + 45°
1755° lies in the fourth quadrant in which the cosine function is positive.
∴ cos 1755° = cos (90° × 19 + 45°)
= sin 45°
1
Find the values of the following trigonometric ratios:
Given
⇒ 1755° = 90° × 19 + 45°
1755° lies in the fourth quadrant in which the cosine function is positive.
∴ cos 1755° = cos (90° × 19 + 45°)
= sin 45°