Evaluate (sin x- cos x)^2+(sin x+cos x)^2
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2
Answer:
2
Step-by-step explanation:
we have,,
(sinx-cosx)²+(sinx+cosx)²
= sin²x+cos²x-2sinxcosx+sin²x+cos²x+2sinxcosx
= 1-2sinxcosx+1+2sinxcosx
= 2 ....ans.
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