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The point (4,-4) is on the terminal side of an angle t. Find sin(t) to 2 decimal places.

Deathstroke_rule  Mar 24, 2017
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We can use the arctan here...

 

arctan ( -4 / 4)  = t  = - 45°   =   315°

 

And sin(315°)  = -.707 = .71   (rounded)

 

 

cool cool cool

CPhill  Mar 24, 2017

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