Question : When xm is multiplied by xn product is 1. The relation between m and n is:
Option 1: mn = 1
Option 2: m = n
Option 3: m + n = 1
Option 4: m = – n
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Correct Answer: m = – n
Solution :
x
m
× x
n
= 1
⇒ x
m + n
= x
0
⇒ m + n = 0
⇒ m = –n
Hence, the correct answer is m = – n.
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