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The coefficient of x^160 in the expansion of (x^8 + 1)^60(x^12 + 3x^4 + 3/x^4 + 1/x^12)^-10 is

+3 votes
in JEE by kratos

The coefficient of x160 in the expansion of (x8 + 1)60(x12 + 3x4 + 3/x4 + 1/x12)-10 is

(A) 30C6

(B) 30C5

(C) divisible by 189

(D) divisible by 203

1 Answer

+5 votes
by kratos
 
Best answer

Correct option (B)

Explanation:

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