Question

вычислить 10!+11!/9!+8!

Answer 1

$10! + frac{11!}{9!} + 8! = \ = 10! + frac{11!}{9!} + 8! = \ = 10! + 11 times 10 + 8! = \ = 110 + 8!(10 times 9 + 1) = \ = 110 + 91 times 8! = \ = 110 + 91 times 40320 = \ = 110 + 3669120 = 3669230$