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Evaluate the expression without using a calculator.

0 votes

Evaluate the expression without using a calculator.

evaluate-the-expression

asked Jan 20, 2015 in TRIGONOMETRY by anonymous

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1 Answer

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Step 1:

The expression is .

Cofunction identities : .

Pythagorean identities : .

= 1

Solution :

.

answered Jan 20, 2015 by joseph Apprentice

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