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" 4."cos^(6)A+sin^(6)A=1-3sin^(2)A cos^(...

" 4."cos^(6)A+sin^(6)A=1-3sin^(2)A cos^(2)A

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cos^(6)A+sin^(6)A=1-3/4sin^(2)(2A)

cos^(6)A+sin^(6)A=1-3/4sin^(2)(2A)

Prove the following identities: sin^(6)A+cos^(6)A=1-3sin^(2)A cos^(2)A

sin^(6)A + cos^(6)A + 3sin^(2)A.cos^(2)A=

sin ^ (6) A + cos ^ (6) A = 1-3sin ^ (2) A cos ^ (2) A

sin^(6)A+cos^(6)A+3sin^(2)A cos^(2)A=0 b.1c2d.3

Prove that: cos^(6)A-sin^(6)A=cos2A(1-(1)/(4)sin^(2)2A)

Prove that sin^(6)x + cos^(6)x = 1 - 3 sin^(2) x cos^(2)x .

sin^6A+cos^6A+3sin^2A.cos^2A=