Question #d08ca

1 Answer
Y
May 9, 2017

#sin(90^@)=1#

Explanation:

On the unit circle, #90^@# is the coordinate point #(0,1)#. Since sine only deals with the y-value of the coordinate, therefore, #sin(90^@)=1#.

It is also a special trig angle which is nice to have memorized.

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