SOLUTION: If tan theta=3, theta is acute find sin and cos

Question 1045410: If tan theta=3, theta is acute find sin and cos

Answer by ikleyn(52858) (Show Source): You can put this solution on YOUR website!
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If tan theta=3, theta is acute find sin and cos
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You are given  = 3.


1.  Then  =  =  = .


    Hence,  = +/- = +/-.


    Since the angle  is acute, the sine is positive.


    Then   =  is the only answer.


2.   =  =  =  = .


    Hence,  = +/- = +/-.


    Since the angle  is acute, the cosine is positive.


    Then   =  is the only answer.

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