It helps to solve complex problems involving exponents of variables easily. Class 9 Coordinate Geometry Formulas Equation of a line Equation of a circle Here r is the radius of the circle Equation of a parabola Equation of an ellipse Equation of hyperbola Distance formula D Angle between two lines. Basically these are the basic formulas which you all did in our school days.
During Class 6 Class 7 Class 8 Class 9 Class 10 you did these formulas.
Chapter 1 Number Systems Formulas. It helps to solve complex problems involving exponents of variables easily. Discount rate discount list price. For Board exams as well as JEE Mains and Advance you can take a look on these formulas.