化简:根号x^2+2x+1 +绝对值x(x
问题描述:
化简:根号x^2+2x+1 +绝对值x(x
答
√(x^2+2x+1)=√(x+1)^2=|x+1|
∵x
化简:根号x^2+2x+1 +绝对值x(x
√(x^2+2x+1)=√(x+1)^2=|x+1|
∵x