Why sin 90 is 1? When the reference angle becomes 90 and the

Answer (1 of 7): You are restricting your thoughts to the definition of a sine function defined on the acute angles of a right triangle. That definition does not apply when the angles is 90 degrees or larger. With angles of arbitrary size one defines the angles using a point on the unit circle. L

Unit Circle Trigonometry

Sin 90 Degrees - Find Value of Sin 90 Degrees

3 tan θ - sqrt3 = 0 equals 30, 210 deg. How is this a 30-60-90

Is trigonometry necessary to learn before entering into a career

Trigonometric functions - Wikipedia

Why is sin 90 taken to be 1? - Quora

3 tan θ - sqrt3 = 0 equals 30, 210 deg. How is this a 30-60-90

19.1.3: Unit Circle Trigonometry - Mathematics LibreTexts

How to find the exact value of sin 150° using a triangle - Quora

Is trigonometry necessary to learn before entering into a career