- How many orthogonal matrices exists of size 5 x 21, 6 x 31, and 8 x 57?

Discover Questions

How many edges in a circle? Can reality itself be programmed by interacting with it - in particular asking questions that lead to where you're directing it to go? Solve the equation for x.
e^x = 85? Could someone help me with these math problems? I can't figure them out. Solve the linear equation;
x+2y=15
y=-2x+0 9x-12y=-3
-12x+16y=4? If a+b+c=4, ab+ac+bc=6, and abc=3, what is 1/a + 1/b + 1/c?