4cos theta=1/9

solve for theta
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2 Answers

4*kosine(x)=(1/9)

kosine(x)=(1/36)....0.027777777777...

yuze invers kosine(0.0277777....)

get 88.4082458248288 deg
by

4cos theta=1/9

cos theta=1/36

Theta = 2pi n ± cos^(-1)(1/36)

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by Level 8 User (30.1k points)

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