Question

. Find the coefficient of y in the expansion f (x, y) = (y + x – 1)^2

Answer 1

Answer:

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Answer 2

( x , y ) = ( y + x - 1 ) ^2

xy = yx + ( -1 ) ^2

xy = 1^2 = 2

Explanation - Coefficient is an algebraic term. The numerical factor of a term is called the numerical coefficient or simply coefficient.