Prove that sinx+cosx=? , Mathematics

Multiply and divide by root2, then

root2/root2(sinx+cosx)

= root2(sinx/root2 + cosx/root2)

= root2(sinx cos45+cosx sin45)

= root2(sin(x+45))

Posted Date: 3/14/2013 12:41:34 AM | Location : United States







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