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Find the exact value of each expression. Do not use a calculator.

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Find the exact value of each expression. Do not use a calculator.

trigonometric-functions
exact-value

asked Jan 27, 2015 in PRECALCULUS by anonymous

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1 Answer

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Step 1:

The expression is .

Recall trigonometric identity .

Solution:

.

answered Jan 27, 2015 by cameron Mentor

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