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Toán Lớp 11: g. situx(1 + cos2x} + sin2x = 1 + cOSA, i. (2+ain²x)cosx + (1+cos³x)sinx = 1+ sin2x.

Home/ Toán Lớp 11: g. situx(1 + cos2x} + sin2x = 1 + cOSA, i. (2+ain²x)cosx + (1+cos³x)sinx = 1+ sin2x.

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