Direction Cosines are the Cosines Of the Angles of the angles between and the line and the coordinate Axis. If we have a vector (a,b,c) in space then two a=x2-x1,b=y2-y1 and c =z2-z1 are called the direction...
How To Avoid Sleep While Studying? Here are the top 7 methods to avoid sleep while you are studying: 1)Be Interested in what you are Studying! Yes in order to prevent sleep you must make sure...