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Find the exact value of:

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Find the exact value of:

sin 45^o + sin 135^o + sin 225^o + sin 315^o

trigonometric-functions
exact-value

asked Jan 24, 2015 in PRECALCULUS by anonymous

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1 Answer

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Step 1:

The trigonometric expression is

Solution:

.

answered Jan 26, 2015 by david Expert

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