Find the limit (if it exists). (If an answer does not exist, enter DNE.) lim
x→3
f(x),
where
f(x) =

x2 + 5, x ≠ 3
3, x = 3

What is the base of 1/9 to the power of 2

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.

If the value of cos330°is√3/2 then find cos 165°.