Posted by mark on Thursday, January 1, 2009 at 5:14pm.
Simplify: i^25
Sqrt900
cuberoot125x^6

math  DrBob222, Thursday, January 1, 2009 at 5:57pm
i^2=1
i^3 = i
i^4 = 1
Do you notice a trend (to get to i^25)?
sqrt 900 = sqrt (1*900) = 30i
You can check this and your work by going to google and typing in the equation; e.g., i^25 or sqrt 900 and enter.