Question

Calcule:

a) A 6,4

b)c6,4


me ajudem obg

Answer 1

Olá Julior 

a) A(6,4) = 6!/(6-4)! = 6!/2! = 6*5*4*3 = 360

b) C(6,4) = 6!/(4!2!) = 6*5*4!/4!2 = 15 

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