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April 27, 2015

Homework Help: Math

Posted by sophie on Monday, June 1, 2009 at 8:26pm.

Use a sum or difference identity to find the exact value of sin225
a. (-√2 - √6)/4
b. (√6 - √2)/4
c. (√6 + √2)/4
d. (√2 - √6)/4

is it A?

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