判断下列函数的奇偶性:1.y=x3+1/x;2.y=根号2x-1+根号1-2x;3.y=x4+x;4.y={x2+2(x>0),0(x=0),-x2-2(x

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判断下列函数的奇偶性:1.y=x3+1/x;2.y=根号2x-1+根号1-2x;3.y=x4+x;4.y={x2+2(x>0),0(x=0),-x2-2(x

判断下列函数的奇偶性:1.y=x3+1/x;2.y=根号2x-1+根号1-2x;3.y=x4+x;4.y={x2+2(x>0),0(x=0),-x2-2(x
判断下列函数的奇偶性:1.y=x3+1/x;2.y=根号2x-1+根号1-2x;3.y=x4+x;4.y={x2+2(x>0),0(x=0),-x2-2(x

判断下列函数的奇偶性:1.y=x3+1/x;2.y=根号2x-1+根号1-2x;3.y=x4+x;4.y={x2+2(x>0),0(x=0),-x2-2(x
1奇
2非奇非偶
3非奇非偶
4奇