七年级或是八年级数学题若1+2+3+…+100=5050,化简(x^100·y)(x^99·y^2)(x^98·y^3)…(x^2·y^99)(x·y^100)

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七年级或是八年级数学题若1+2+3+…+100=5050,化简(x^100·y)(x^99·y^2)(x^98·y^3)…(x^2·y^99)(x·y^100)

七年级或是八年级数学题若1+2+3+…+100=5050,化简(x^100·y)(x^99·y^2)(x^98·y^3)…(x^2·y^99)(x·y^100)
七年级或是八年级数学题
若1+2+3+…+100=5050,化简(x^100·y)(x^99·y^2)(x^98·y^3)…(x^2·y^99)(x·y^100)

七年级或是八年级数学题若1+2+3+…+100=5050,化简(x^100·y)(x^99·y^2)(x^98·y^3)…(x^2·y^99)(x·y^100)
(x^100·y)(x^99·y^2)(x^98·y^3)…(x^2·y^99)(x·y^100)
=x^(100+99+.+1)*y^(1+2+3+...+100)
=x^5050*y^5050

(xy)^5050