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If the r^(th) term in the expansion of ...

If the ` r^(th)` term in the expansion of `((x)/(3)-(2)/(x^(2)))^(10)` contains `x^(4) `, then r=

A

1: 2

B

2: 3

C

3: 4

D

5

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The correct Answer is:
B
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