proove this gimme full solution please
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a^2+b^2
=sin^2theta+cos^2theta + 2sinthetacostheta + sin^2theta +cos^2theta -2sinthetacostheta
=1+1=2
=sin^2theta+cos^2theta + 2sinthetacostheta + sin^2theta +cos^2theta -2sinthetacostheta
=1+1=2
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can u do it in notebook nd show pls
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