pawanbastakoti681 pawanbastakoti681

04-04-2020
Mathematics

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Prove
that:
cos^3A Cos3A + sin^3A.sin 3A=cos^3 2A

Provethatcos3A Cos3A sin3Asin 3Acos3 2A class=

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Аноним Аноним

04-04-2020

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