Question

3(n+1)! divided by 5n!

Answer 1

Please help, I need a good grade on my summer math packet.

Answer 2

or this

Answer 3

Do you think you could explain it, please?

Answer 4

the answer is 3(n+1)/5

Answer 5

\[\frac{3(n+1)!}{5n!}=\frac{3(n+1)n!}{5n!}=\frac{3(n+1)\not{n!}}{5\not{n!}}=\frac{3(n+1)}{5}\]

Answer 6

(n+1)! = (n+1)(n)(n-1)...(3)(2)(1)

n! = (n)(n-1)...(3)(2)(1)


Notice how both have the terms (n)(n-1)...(3)(2)(1) in common, so they cancel.

Answer 7

and they leave the term n+1 behind

Answer 8

ie \[\frac{(n+1)!}{n!}=n+1\]

Answer 9

\[\cos(\sin^{-1} 1/2)\]

Answer 10

What about this one? I'm not sure where to start.

Answer 11

make a right triangle