How do you calculate ${cos}^{- 1} (- 0.94)$ $cos^-1 (-0.94)$ ?

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How do you calculate ${cos}^{- 1} (- 0.94)$ $cos^-1 (-0.94)$ ?

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Answer 1 · 2016-12-14T00:53:43

Use a calculator:
${cos}^{- 1} (- .94) = {160.052}^{\circ}$ $cos^-1(-.94)=160.052^@$

Explanation:

Make sure that you are in the correct units for the question.
My calculator was set in degrees, but your instructor may ask that you answer in radians. The answer in radians is 2.793.

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How do you calculate ${cos}^{- 1} (- 0.94)$ $cos^-1 (-0.94)$ ?

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