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When do you know to use tan,cos, or sin?
Guest Feb 21, 2012

Best Answer 

 #2
avatar+93691 
+5

Maybe the top part of this will help.

http://www.mathsisfun.com/sine-cosine-tangent.html

Melody  Feb 18, 2015
 #1
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+5

If you know either the hyp. or the side adj. and the angle between them , take the sine of the angle times the hyp. = side opp. or take tangent of angle times side adj. = side opp. you realy dont need to use cosine at all.

                           Rustynut "jus get n by"

Guest Feb 17, 2015
 #2
avatar+93691 
+5
Best Answer

Maybe the top part of this will help.

http://www.mathsisfun.com/sine-cosine-tangent.html

Melody  Feb 18, 2015

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