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I want to know how to find sin 135˚. 

 

i mean using a calculator you get 0.707 but i want to know how to do it without a calc.

 Nov 26, 2021
 #1
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You'll have to go back to your unit circle for a reference angle of 45 degrees ....can you do it then?

 Nov 26, 2021
 #2
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Then find the two equal leg lengths knowing the hypotenuse is '1'      and    sin =   opposite leg  /  hyp      

Guest Nov 26, 2021
 #3
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got it, thanks

Guest Nov 26, 2021

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