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If 4x= (81)/( x), then the value of x ...

If ` 4x= (81)/( x), ` then the value of x is :

A

` - 4, 5`

B

` +- 4.5`

C

` 4.5`

D

` +- 0.45`

Text Solution

Verified by Experts

The correct Answer is:
B
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