"vary" means to take on a different values , to change in value -- pretty much the everyday meaning.
It mean the variable number, n, times five.
It means: 3 times n
x-n = 1 / xn
I assume that with n(...) you mean the size of the set. It sure can; but it need not be.
n will typically mean number. It can stand for any given number, and what it stands for will depend on the problem.
negative nine
Nine
number numeral nought
It mean the variable number, n, times five.
That's a u
It means: 3 times n
If this is math it is probably refering to "n" as a specified number in a key/legend
As it appears, simply X times N
x-n = 1 / xn
join
I assume that with n(...) you mean the size of the set. It sure can; but it need not be.
n will typically mean number. It can stand for any given number, and what it stands for will depend on the problem.