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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.

 

asked Jan 27, 2015 in PRECALCULUS by anonymous

1 Answer

0 votes

Step 1:

The expression is image.

image

Recall trigonometric identity image.

image

image

Solution:

image.

answered Jan 27, 2015 by cameron Mentor

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