Упростите выражение:
tg²3x + cos²4x + sin²4x
tg²3x + cos²4x + sin²4x= tg + 1 = 1/cos^2(3x)
возможно
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tg²3x + cos²4x + sin²4x= tg + 1 = 1/cos^2(3x)
возможно