If you have more than one character in an exponent, set off the whole exponent in braces.
[tex]3^{(k+1)}[/tex] gives instead of .
Prove that: n is an integer greater than 6.
Basic step:
2187 < 5040
Inductive Steps:
hypothesis:
conclusion:
Proof:
why is this one: equal to ?
Is there any better way to prove it?