Having trouble with long division, simplify it! This simple trick comes from Math Guide. Short Division example below: 6 into 25 = 4 1 left over, draw it in front of the 3 6 into 13 = 2 1 left over, draw it in front of the 2 6 x 2 = No remainder!
In pre-calculus, the unit circle is sort of like unit streets, it’s the very small circle on a graph that encompasses the coordinates. It has a radius of hence the unit. The figure here shows all the measurements of the unit circle: