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find the value of sine, cosine, and tangent

 

 Sep 22, 2020
 #1
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The easy one first     Tan A = opp / adj =  24/ 36 = 2/3       so it is eather answer  A  or D

 

Now find the hypotenuse length by pythagorean theorem

24+ 362 = h2

h = sqrt 1872  =  12 sqrt 13

 

Sin A = opp/ hyp =   24 / (12 sqrt13) =  2 / sqrt13  = 2 sqrt13/13      so the answer is A

    as a check, see if you can calculate the cosine A = adj/hyp   to see if it matches the answer !  

 Sep 22, 2020

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