TS EAMCET · Maths · Binomial Theorem
The coefficient of in the expansion of is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(D)
Step-by-step Solution
Detailed explanation
1-x-x2+x36 =11-x-x21-x6 =1-x21-x6 =1-x261-x6 Apply expansion formula of (1-x)n=1-nx+nn-12!x2-nn-1n-23!x3... Therefore, we get =1-nx2+nn-12!x4-....1-nx+nn-12!x2-nn-1n-23!x3+... Now taking the coefficients of x4,…
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