Question

The coefficient of y11 in (1 + y)2/(1 - y)2 is


(A) 44 (B) 42 (C) 40 (D) 46Please help me out.....

Answer 1

y is coefficient so hide y , from (1+y)2(1-2)

Answer 2

The correct answer is option (B) 42.

Explanation:

• The coefficient of y11 in (1 + y)2/(1 - y)2 is
• In mathematics, a coefficient is a multiplicative factor in some term of a polynomial, a series, or any expression; it is usually a number, but may be any expression.
• When the coefficients are variables, they are often called parameters.
• A coefficient is a number multiplied by a variable.
• Examples of coefficients: In the term 14 c 14c 14c , the coefficient is 14. In the term g, the coefficient is 1.