If x^(4) occurs in the rth term in the e...

If `x^(4)` occurs in the rth term in the expansion of `( x^(4) + ( 1)/( x^(3)))^(15)` , then what is the value of r ?

A

7

B

8

C

9

D

10

Verified by Experts

The correct Answer is:

C

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