PreCal

Solve the following equation for all solutions: cos(5x)cos(3x)-sin(5x)sin(3x)=√3/2. I know the formula to use would be cos(A+B), but I'm just not confident in my ability to solve it correctly.

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  1. cos(5x)cos(3x)-sin(5x)sin(3x)=√3/2
    cos(5x+3x) = √3/2
    8x = ±π/6 + 2kπ
    x = ±π/48 + kπ/4

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