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If 5sqrt(5)xx5^3-:5^(-3/2)=5^(a+2) , the...

If `5sqrt(5)xx5^3-:5^(-3/2)=5^(a+2)` , then the value of `a` is `4` b. `5` c. `6` d. `8`

A

4

B

5

C

9

D

16

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A
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