Precalculus
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Find the acute angle solution to the following equation involving cofunctions. θ\thetaθ is in degrees.
cos(2θ+15)=sin(5θ+12)\cos\left(2\theta+15\right)=\sin\left(5\theta+12\right)cos(2θ+15)=sin(5θ+12)
1°1\degree1°
4°4\degree4°
6°6\degree6°
9°9\degree9°