Solve for x : cos ( x 2 + 10 ° ) = √ 3 2

Solve for x : cos `(x/(2)+10°) = (sqrt3)/(2)`

Sum

cos `( x/2 + 10°) = (sqrt3)/(2)`

cos `( x/2 + 10°)` = cos 30°

`(x)/(2)` + 10° = 30°

x = 40°

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Trigonometric Equation Problem and Solution

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