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OpenStudy (anonymous):
(sin + cos)^2 + (sin-cos)^2
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OpenStudy (goformit100):
break it in the form of (a+b)^2 and (a-b)^2.
OpenStudy (anonymous):
I did and got the answer of zero which i believe is wrong.
OpenStudy (goformit100):
it will be two . Answer is 2
OpenStudy (anonymous):
how did you get 2?
OpenStudy (goformit100):
|dw:1357260608350:dw||dw:1357260706107:dw|
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