Trigonometry › Angles and radians › Point on the terminal side

Coordinate on the terminal side

High school · ●●○○○ 20 pts

Given that point P(−2,y)P(-2, y) lies on the terminal side of angle θ\theta, and sin⁡θ=55\sin\theta = \frac{\sqrt{5}}{5}, find yy.

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trigonometric functions