Trigonometry - Find the value when the angle is larger than 90 or smaller than 0
Sin(90-A), Sin(90+A), Cos(180-A), Cos(180+A), Sin(270-A), Sin(270+A),Cos(360-A) How Why Trigonometry
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Sin 90 degrees = 1 😎 but why ???
TRIGONOMETRIC VALUES FOR AN ANGLE 90 DEGREES || PROOFS SIN 90 COS 90 TAN 90 VALUE
