Posted by Alex on Thursday, April 17, 2008 at 8:43pm.
Someone please explain these!
The angle between two planes is defined as the angle between their normals. Determine the angle theta between 0 and 90 degrees between the given planes.
a) 2x+3yz+9 = 0 and x+2y+4 = 0

If the positive zaxiz points up, show that the line x=0, y=t, z=2t is parallel to and below the plane 2x10y+5z1 = 0.

Find an equation for the set of points P(x,y,z) that are equidistant from the points A(1,2,3) and B(4,0,1)

Math  mike, Thursday, April 17, 2008 at 9:36pm
how do you solve inequality problems?
example 16> 20 + g