Question

1º)Calcule:
a)6!
b)4 . 2!
c)5! - 4!
d)10!/3!7!
e)15!13! /15!

Answer 1

Resposta:

a) 6! = 6x5x4x3x2x1 = 720

b) 4 x 2! = 4 x 2 x 1 = 8

c) 5! - 3! = (5x4x3x2x1 = 120) - (4x3x2x1 = 24) = (120 - 24 = 96)

d) 10!/3!7!  = ((10x9x8x7x6x5x4x3x2x1 = 3628800) / 3 = 1209600); (7! = 7x6x5x4x3x2x1 = 5040)

e) 15! = (15x14x13x12x11x10x9x8x7x6x5x4x3x2x1 = 1.3076744e^+12); ((13! = 13x12x11x10x9x8x7x6x5x4x3x2x1 = 6227020800) / 15!  = 0.004761904760)