Question

Proof : sin 0° = 0 and sin 90° = 1 . have a Nice day ​

Answer 1

Answer:

sin 0° = 0

For 0 degrees, the x-co-ordinate represents the cosine of 0,and is equal to 1. And the y -co-ordinate which is zero is the sine of 0. Draw a circle of radius one unit. Through the centre draw the y- axis and the x-axis.

sin 90° = 1

Sine of an angle is defined by the ratio of the length of a side of the right angled triangle opposite to the angle, to the length of the hypotenuse of the right angled triangle. ... For 90°, you will get equal lengths for the opposite side and hypotenuse… and hence the ratio as 1 (hypothetical situation by the way).

Step-by-step explanation:

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