Question 3 - General Term of Binomial Theorem - Chapter 7 Class 11 Binomial Theorem
Last updated at April 16, 2024 by Teachoo
General Term of Binomial Theorem
General Term of Binomial Theorem
Last updated at April 16, 2024 by Teachoo
Question 3 Write the general term in the expansion of (x2 – y)6 We know that General term of expansion (a + b)n is Tr + 1 = nCr an–r br For (x2 – y)6 Putting n = 6 , a = x2 , b = –y Tr + 1 = 6Cr (x2)6 – r (–y)r = 6!/𝑟!(6 − 𝑟)! . (x)2(6 – r) . (–1)r . (y)r = (–1)r 𝟔!/𝒓!(𝟔 − 𝒓)! . x12 – 2r . yr