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प्रश्न
If (am)n = am .an, find the value of : m(n - 1) - (n - 1)
उत्तर
(am)n = am .an
⇒ amn = am + n
⇒ mn = m + n ....(1)
Now,
m( n - 1 ) - ( n - 1 )
= mn - m - n + 1
= m + n - m - n + 1 ....[ From (1) ]
= 1
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