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Mathematics 9 Online
OpenStudy (anonymous):

cos theta= .81 find theta

OpenStudy (anonymous):

apply cos inverse to both sides theta = cos^-1(0.81)

OpenStudy (anonymous):

Oh! duh thank you!

OpenStudy (anonymous):

make sure your calculator is set to the units of measure you require there is degrees, radians and gradians

OpenStudy (anonymous):

its roughly 35.9 degrees

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