Question

if 1 by 6 factorial + 1 by 7 factorial is equal to X by 8 factor then x is equal to

Answer 1

(1/720)+(1/5040)=x/8

(8/5040)=x/8

1/5040/8=x/8

x=1/5040

Answer 2

Answer: 64

Step-by-step explanation:

(1×8!/6! + 1×8!/7!)=x

Cross multiplication

8×7+8=x

X= 64