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If a cos^3?+3a sin^2?cos?=m and a sin^3?+3 a sin?cos^2?=n, prove that-(m+n)^2/3+(m-n)^2/3=2a^2/3.

Asked by Aditya Chakravarty 16th September 2013, 4:49 PM
Answered by Expert
Answer:
Answered by Expert 16th September 2013, 4:58 PM
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