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sb028089:
If cosx is approximately 0.9511, what is the measurement of x to the nearest degree? Approximately, what is the sine of the angle that is complementary to x?
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dude:
Do inverse cosine \(cos(x)= 0.9511\) Do \(\cancel {cos^{-1}(x)}= cos^{-1}(0.9511)\) \(=17.99ยบ\) Now use that degree measure to find the sine which should be easy
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