Question

ki hieu n ! doc la n giai thua, co n !  = 1. 2. 3. 4. ... n

hay tinh

a/ 5 !   

b/ 6 ! - 5 !

Answer 1

5!=1.2.3.4.5=120

6!-5!=1.2.3.4.5.6-1.2.3.4.5=720-120=60

Answer 2

a) 5! = 1.2.3.4.5 = 120

b) 6! - 5! = 1.2.3.4.5.6 - 1.2.3.4.5 = 720 - 120 = 600

Answer 3

Giải

\(5!=1\cdot2\cdot3\cdot4\cdot5\)

\(=120\)

\(6!-5\)\(=1\cdot2\cdot3\cdot4\cdot5\cdot6-5\)

\(=720-5\)

\(=715\)

Answer 4

a)\(5!=1\times2\times3\times4\times5=120\)

b)\(6!-5!=1\times2\times3\times4\times5\times6-1\times2\times3\times4\times5=720-120=600\)

Answer 5

5! = 1 x  2 x 3 x 4 x 5 = 120

6! - 5! = 1 x 2 x 3 x 4 x 5 x 6 - 1 x 2 x 3 x 4 x 5 = 600

Answer 6

Nhầm

720-120=600