Question

Calculate 800!/798!

Answer 1

not possible

Answer 2

easy

Answer 3

799*800 = 639200

Answer 4

thats not right, use the calculator

Answer 5

The 798! is 1-798 all multiplied

Answer 6

correct?

Answer 7

the 800 is 1-800 all multiplied

Answer 8

you can cancel all the terms except for 799 and 800.

Answer 9

dont need a calculator

Answer 10

so 799*800 = 639200?

Answer 11

yeah i needed a calculator for that.

Answer 12

i tried to use the calculator but it says error, so its 1-800=-799. But you'd do 799x800?

Answer 13

\[ \large \frac{800!}{798!}=\frac{800\cdot799\cdot798!}{798!}=
800\cdot799=639200 \]