For what value of x is the ninth term in...

For what value of x is the ninth term in the expansion of `(3^(log_3 sqrt(25^(x-1) +7)) + 3^(-1/8 log_3 (5^(x-1) +1)))^10` is equal to `180`

A

2

B

1

C

4

D

None of these

Verified by Experts

The correct Answer is:

B

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For what value of x is the ninth term in the expansion of (3^(log3 sqr...
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