When xm is multiplied by xn, product is 1. The relation

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When x^m is multiplied by xⁿ, product is 1. The relation between m and n is

1. mn = 1
2. m = n
3. m + n = 1
4. m = – n

Correct Option: D

x^m × x^m = 1
⇒ x^m+n = x⁰
⇒ m + n = 0
⇒ m = –n