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The terminal side of  θ  passes through the point  (−3,7).

What is the exact value of  sinθ  in simplified form?

 Jan 10, 2018
 #1
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Sin θ   =  y / r    where  r  =

 

√  [  (-3)^2  + 7^2 ]   =  √ [ 9 + 49 ]   =  √ 58

 

So....

 

sin θ  =  y / r  =    7 / √58

 

 

cool cool cool

 Jan 10, 2018

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