跪求u=u2(x) u2(y) u2(z)a(a2-2ab-b2)-b(2a2 ab-b2)|x-1| |x-2|>0∴2ab/a b≤2ab/2√ab=√ab

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跪求u=u2(x) u2(y) u2(z)a(a2-2ab-b2)-b(2a2 ab-b2)|x-1| |x-2|>0∴2ab/a b≤2ab/2√ab=√ab

跪求u=u2(x) u2(y) u2(z)a(a2-2ab-b2)-b(2a2 ab-b2)|x-1| |x-2|>0∴2ab/a b≤2ab/2√ab=√ab
跪求u=u2(x) u2(y) u2(z)a(a2-2ab-b2)-b(2a2 ab-b2)
|x-1| |x-2|>0∴2ab/a b≤2ab/2√ab=√ab

跪求u=u2(x) u2(y) u2(z)a(a2-2ab-b2)-b(2a2 ab-b2)|x-1| |x-2|>0∴2ab/a b≤2ab/2√ab=√ab
y=e^(x^2)f[x^(e^2)]a^2c c^2a ab(a-2b) bc(c-2b)对比A=2×2×3×5×7,B=2×3×3×5×7对比y=e^(x^2)f[x^(e^2)]

x=1 rcosA,y=-1 rsinA,r

x=1 rcosA,y=-1 rsinA,r