Question

how do you add -pi/4+8pi/4

Answer 1

The denominator is the same and so the numerators can be added.\[-\frac{\pi}{4} + \frac{8\pi}{4} = \frac{-\pi + 8\pi}{4} = \frac{7\pi}{4} \]

Answer 2

thanks a lot!!

Answer 3

You are welcome.