Find the values of the following trigonometric ratios:
Given tan 7π/4
⇒ 315° = (90° × 3 + 45°)
315° lies in fourth quadrant in which tangent function is negative.
∴ tan (315°) = tan (90° × 3 + 45°)
=-cot 45°
=-1
1
Find the values of the following trigonometric ratios:
Given tan 7π/4
⇒ 315° = (90° × 3 + 45°)
315° lies in fourth quadrant in which tangent function is negative.
∴ tan (315°) = tan (90° × 3 + 45°)
=-cot 45°
=-1