exam Maths Puzzle Numerical Ability

I am trying to show the result of adding two fractions.
x=times and /= divide

What are the steps to show that
u x i/2pi x (D+d)+ u x i/2pi x (D-d) is equalt to u x i x D/pi(D sq -d sq)

Hope you can help

Read Solution (Total 0)

exam Other Question

This is not algebra but here is my question......hoping to get an answer.

How energy from the sun becomes transformed into energy to power the human body ? The Instructor of an introductory computer course wants to make a wall chart of a computer desktop for her students. To make it as relistic as possible, she would like the desktop