若(x^2+1)(x-3)^9=a0+a1(x-2)+a2(x-2)^2+a3(x-2)^3……+a11(x-2)^11

楼上楼下2022-10-04 11:39:541条回答

若(x^2+1)(x-3)^9=a0+a1(x-2)+a2(x-2)^2+a3(x-2)^3……+a11(x-2)^11; 则a1+a2+a3+……+a11=?
若(x^2+1)(x-3)^9=a0+a1(x-2)+a2(x-2)^2+a3(x-2)^3……+a11(x-2)^11;
则a1+a2+a3+……+a11=?(答案是5,

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灵猫929 共回答了13个问题 | 采纳率92.3%
令x = 2,得a0(2^2+1)*(2-3)^9=-5
令x = 3,得,a0+a1+……+a11=(3^2+1)*(3-3)^9=0
两式相减,得a1+a2+……+a11=0-(-5)=5
1年前

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f'(t)=(2t+2)(t-8)^9+9(t-8)^8(t^2+2t+2)=a1+2a2t+3a3t^2……+10a10t^9+11a11t^10
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若(x^2+1)(x-3)^9=a0+a1(x-2)+a2(x-2)^2+a3(x-2)^3……+a11(x-2)^11
若(x^2+1)(x-3)^9=a0+a1(x-2)+a2(x-2)^2+a3(x-2)^3……+a11(x-2)^11; 则a1+a2+a3+……+a11=?
若(x^2+1)(x-3)^9=a0+a1(x-2)+a2(x-2)^2+a3(x-2)^3……+a11(x-2)^11;
则a1+a2+a3+……+a11=?(答案是5,
bj智联1年前1
紫霜镜 共回答了18个问题 | 采纳率100%
令x = 2,得a0(2^2+1)*(2-3)^9=-5
令x = 3,得,a0+a1+……+a11=(3^2+1)*(3-3)^9=0
两式相减,得a1+a2+……+a11=0-(-5)=5