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prove that:
(i)sinsquaredalpha+cossquared(alpha+beta)+2sinalphasinbetacos(alpha+beta) is independent of alpha
(ii)cossquared(alpha-beta)+cossquaredbeta-2cosalphacosbetacos(alpha-beta) is independent of beta

lahari , 9 Years ago
Grade 11
anser 1 Answers
Harsh Patodia
PFA
On the same basis you can do second one also

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Last Activity: 9 Years ago
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