Question

O valor de K = 2C7, 3 – A27, 1 + (3!)2
é:

A) 79
B) 97
C) 49
D) 71
E) 43

Answer 1

Resposta:

$\textsf{Leia abaixo}$

Explicação passo a passo:

$\mathsf{K = 2C_{7,3} - A_{27,1} + (3!)^2}$

$\mathsf{K = 2\left(\dfrac{7.\not6.5.\not4!}{\not3!.\not4!}\right) - \dfrac{27.26!}{26!} + (6)^2}$

$\mathsf{K = 2(35) - 27 + 36}$

$\mathsf{K = 70 - 27 + 36}$

$\boxed{\boxed{\mathsf{K = 79}}}\leftarrow\textsf{letra A}$