Plzz solve it for me
sin(7 theta+9)=cos2theta
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SinA= CosB ,,
only when angles A+B=90°
therefore,, Sin(7theta+9)= Cos(2theta)
implies
7theta+9+2theta=90°
9theta = 81°
theta=81/9=9°
only when angles A+B=90°
therefore,, Sin(7theta+9)= Cos(2theta)
implies
7theta+9+2theta=90°
9theta = 81°
theta=81/9=9°
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