SOLUTION: if tan(x)=10/19 in quadrant-1) find sin (2x)

Question 1193970: if tan(x)=10/19 in quadrant-1) find sin (2x)
Answer by ikleyn(52906) (Show Source): You can put this solution on YOUR website!
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if tan(x)=10/19 in quadrant-1) find sin (2x)
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If tan(x) = 10/19,  you may think that  sin(x) = ,  cos(x) = .


Then sin(2x) = 2*sin(x)*cos(x) =  =  =

             =  = use your calculator = 0.8242950   (rounded).    ANSWER

Solved.

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