To find the coefficient of x 7 y 2 in the expansion of (x 2y) 9 Formula Used A general term, T r1 of binomial expansion (x y) n is given by, Now, finding the general term of the expression, (x 2y) 9, we get The value of r for which coefficient of x 7 y 2 is defined R = 2 About this tutor › About this tutor › (xy)3expanded has 4 terms, 1 more than the exponent, x3x2y xy2and y3 x is decreasing from 3 to 0 from left to right, as y increases from 0 to 3 Any number or variable to the 0 power is 1 Then you need the coefficients for each of the 4 termsFind the number of terms in the expansion of x y 3 x y 3 2 x y 3 x y 3 2 = x 2 y 2 3 2 = x 2 y 2 6No of terms in the expansion = n
How Can We Expand X Y 1 2 Youtube
