Question

How do you figure out that if you go to pi/2 and go add 2pi it will be 5pi/2

Answer 1

pi/2 + 2pi


pi/2 + 2pi*(2/2)


pi/2 + 4pi/2


(pi + 4pi)/2


5pi/2


So pi/2 + 2pi = 5pi/2

Answer 2

where does the (2/2) come from?

Answer 3

I want the denominator of 2pi to be 2. So I multiply it by 2/2 (which is essentially 1) to get it there.

Answer 4

I'm doing this so I can add the fractions. Remember you can only add fractions if the denominators are equal.

Answer 5

ok thanks!

Answer 6

yw