求微分,最好上图,
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求微分,最好上图,求微分,最好上图, 求微分,最好上图,(2)dy=y''dx=[-cosx(1+sinx)-(1-sinx)cosx]dx/(1+sinx)^2=-2cosxdx/(1+si
求微分,最好上图,
求微分,最好上图,
求微分,最好上图,
(2) dy = y'dx = [-cosx(1+sinx)-(1-sinx)cosx]dx/(1+sinx)^2
= -2cosxdx/(1+sinx)^2.
(4) dy = y'dx = 2tan(1+x^2)[sec(1+x^2)]^2*2xdx
= 4xtan(1+x^2)[sec(1+x^2)]^2dx.