计算a^2+2a+1分之2(a+1)÷a+1分之2

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计算a^2+2a+1分之2(a+1)÷a+1分之2
计算a^2+2a+1分之2(a+1)÷a+1分之2

计算a^2+2a+1分之2(a+1)÷a+1分之2
a^2+2a+1分之2(a+1)÷a+1分之2
=a^2+2a+1分之2(a+1)x2分之a+1
=1