If a+b+c = 0, then the value of a²(b+c)+b² (c+a)+c²(a+b) is abc

Find the solution set of ((x - 1)(x - 2) * (x - 3) ^ 2)/((x - 4) ^ 2 * (x - 5) ^ 3) < 0

4.

a)

b)

c)

If |z1|=8 and |z2|=3 then maximum value of |z1-zz| is

5

11

24

How do you graph \[y = \cot x\]?

Define the following term: class size.