SOLUTION: solving for the variable: cos(2θ+50)=sin(2θ-20) I changed it cosine to sine and got 90-2theta+50=2theta-20 40-2theta=2theta-20 60=4theta theta=15

SOLUTION: solving for the variable: cos(2θ+50)=sin(2θ-20) I changed it cosine to sine and got 90-2theta+50=2theta-20 40-2theta=2theta-20 60=4theta theta=15

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Question 1109122: solving for the variable: cos(2θ+50)=sin(2θ-20)
I changed it cosine to sine and got
90-2theta+50=2theta-20
40-2theta=2theta-20
60=4theta
theta=15
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Can substitute theta=15
cos (80) should equal sin (10)
It does.
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