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07-02-2020
Mathematics

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At a local park there is a large compass painted on the sidewalk. Blaine starts at due north and walks 150° in a clockwise direction. Using the unit circle, find the sine value of his current position.
A) negative square root of 3 over 2.
B) square root 2 over 2.
C) one half.
D) negative one half.

Respuesta :

07-02-2020

Yo sup??

the angle is in 3rd quadrant.

we can say that

sin(90+150)

=sin(180+60)

=-sin(60)

=-3^(1/2)/2

Hence the correct answer is option A

Hope this helps

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