The complex numbers $z$ and $w$ satisfy $|z| = |w| = 1$ and $zw \ne -1.$ (a) Prove that $\overline{z} = \frac{1}{z}$ and $\overline{w} = \frac{1}{w}.$ (b) Prove that $\frac{z + w}{zw + 1}$ is a real number.

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

Pleting the square f the given find the x-intercepts of the parabola with vertex (-5,13) and y-intercept (0, 12). write your answer in this form: (14,.99). if necessary, round to the nearest hundredth. *- h enter the correct answer, de verter, and ametry 00000 done doo

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n