若(x-2)^5=ax^5+bx^4+cx^3+dx^2+ex+f,求(1)a+b+c+d+e+f（2）a-b+c-d+

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若(x-2)^5=ax^5+bx^4+cx^3+dx^2+ex+f,求(1)a+b+c+d+e+f（2）a-b+c-d+e-f(3)c+e(4)b+d

(x-2)^5=ax^5+bx^4+cx^3+dx^2+ex+f=x^5-10x^4+40x^3-80x^2+80x-32
a=1 b=-10 c=40 d=-80 e=80 f=-32
(1)a+b+c+d+e+f=1-10+40-80+80-32=-1
（2）a-b+c-d+e-f=1+10+40+80+80+32=243
(3)c+e=40+80=120
(4)b+d=-10-80=-90

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