Ответы и объяснения

2013-07-02T21:51:32+04:00

б

(sin2x-3)'*(cos 2x+1)-(cos 2x+1)'*(sin 2x-3)/(cos 2x+1)^2= cos 2x(cos 2x+1)+sin 2x(sin 2x-3)/(cos 2x+1)^2

 

a

-6x^2/x^6+6x^2/4+5^3n+1*ln 5