Question

for what value of n does 10! divided by (7! times 3!) =n ?

Answer 1

use the property that
\(n! = n(n-1)!\)
\((n-1)!=(n-1)(n-2)!\)
and so on,
like 4! = 4*3! = 4*3*2! =....

Answer 2

so, what would you express 10! as ?

Answer 3

10! =10 times 9 ???

Answer 4

Is that right?

Answer 5

i think that ! means to multiply down like 10x9x8x7x6x5x4x3x2x1

Answer 6

10! = 10*9!
but thats no use to us,
we have 7! in the denominator,
so, how about this,
10! = 10*9! = 10*9*8! = 10*9*8* 7!
got this ?

Answer 7

Thanks:)

Answer 8

welcome :) and could you find n now ?