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The coefficient of t^24 in (1+t^2)^2 (1+...

The coefficient of `t^24` in `(1+t^2)^2 (1+ t^12) (1+ t^24)` is:

A

`""^12C_0+3`

B

`""^12C_6`

C

`""^12C_6+1`

D

`""^12C_6+2` .

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MODERN PUBLICATION-BINOMIAL THEOREM-EXERCISE
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