Решите пожалуйста.
1)4*cos^2(8x)-2
2)2sin(6x)*cos(6x)/(cos^2(6x)-sin^2(6x))
1)4*cos^2(8x)-2
2)2sin(6x)*cos(6x)/(cos^2(6x)-sin^2(6x))
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Answers & Comments
2= 2(sin^2 8x + cos ^2 8x)
2)2sin 12x/cos 12x= 2 tg 12 x