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Use the even–odd properties to find the exact value of the expression. Do not use a calculator.

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Use the even–odd properties to find the exact value of the expression. Do not use a calculator.

tan (- π/4)

even-odd-properties
exact-value

asked Jan 26, 2015 in PRECALCULUS by anonymous

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1 Answer

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Step 1:

The expression is .

Trigonometric even-odd properties: .

Solution:

answered Jan 26, 2015 by Lucy Mentor

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