- Prove that the four lines ax+-by+-c=0 form a rhombus whose area is 2c^2/|ab|?

Discover Questions

Can a Sodium atom make a covalent bond? Can a Carbon atom make an ionic bond? If measure of angle A = 60 and AB = 5, then BC = ? Find the sum of the indicated number of terms of the geometric sequence.
10, 4, 8/5, ...; n = 5? A(0,3), B(4,1), C(-2,-1), D(7,7) and E(1,-1) 1. The midpoint of Line segment DE has coordinates ?
Please help, reviewing for a test? Find the angle alpha formed by the intersection of 2x + 3y = 4 and 5x - 6y = 7?