Describe the locus of points representing z if (z-2)/(z+2) is purely imaginary.

the answer is |z| = 2.
i can form the locus equation x^2 + y^2 = 4 from the given info. i just don't know how to get from there to the answer. is much appreciated!

You are working with a professional edition organization. they wish to install the expense tracker which requires the use of 4 custom tabs, 3 custom objects, and one custom app. if the company is already using 4 applications, 36 custom objects, and 7 custom tabs, what will happen when they try to install expense tracker?

Acase study allows a more detailed look at the life of a single subject than any other study.

Write an essay on online collaboration, how to do it, the challenges, resolving the challenges, and consider whether the risks are greater than rewards. ( need )