Question

Помогите найти 6 член бинома!

Answer 1

((a^(2/5)+a^(1/10))¹²

C(12)(6)(a^2/5)^6)*(a^(1/10)^6=

12!/(6!*6!) a^12/5)*a^6/10=

(7*8*9*10*11*12/(2*3*4*5*6)*a^(12/5+6/10)

=(7*2*3*2*11)*a³=924 a³