sinx |
x |
(sinx)′x-sinx•x′ |
x2 |
xcosx-sinx |
x2 |
xcosx-sinx |
x2 |
A.(sina)′=cosa(a为常数) | B.(cosx)′=sinx | ||
C.(sinx)′=cosx | D.(x-5)′=-
|
1 |
2 |
3 |
2 |
A.300 | B.450 | C.1350 | D.1500 |
A.f(x)=x2+x-2 | B.f(x)=2(x-1) |
C.f(x)=2x2-4x+2 | D.f(x)=x-1 |
A.sinx+cosx | B.sinx-cosx | C.-sinx+cosx | D.-sinx-cosx |
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