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What is the exact value of  sinθ  in simplified form?

 Feb 17, 2018
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We need to find r =   √  [  (-3)^2  + 7^2 ]  =  √ 58

 

So...sin  θ  =   7 / √ 58   =  7√ 58 / 58

 

We take the positive root because the terminal side of the angle is in quadrant 2 and the sine is positive there

 

cool cool cool

 Feb 17, 2018

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