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If (x^(23))/(x^(m)) = x^(15) and (x^(4))...

If `(x^(23))/(x^(m)) = x^(15) and (x^(4))^(n)=x^(20)`, then mn=

A

`13`

B

`24`

C

`28`

D

`40`

Text Solution

Verified by Experts

The correct Answer is:
D
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