Question

va rog sa ma ajutati​

Answer 1

C₈⁵ = 8!/[5!*(8-5)!] = 8!/5!*2! = (5!*6*7*8)/(5!*2) = 3*56 = 168

A₅² = 5!/(5-2)!  = 5!/3! = (3!*4*5)/3! = 20

168+20 =188