How do you do (sin^4x  sin^2x cos^2x + cos^4x) ?
In fact, the problem was: sin^6x + cos^6x = 13/4 sen^2 2x
But... I factor the identities but I do not remember what else to do.
(sin^2x + cos^2x) (sin^4x  sen^2xcos^2x + cos^4x)
In fact, the problem was: sin^6x + cos^6x = 13/4 sen^2 2x
But... I factor the identities but I do not remember what else to do.
(sin^2x + cos^2x) (sin^4x  sen^2xcos^2x + cos^4x)
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@lightzd Lightz D. asked the question.