STRAIGHT LINE   ► Definition:   Straight line is a curve such that every point on the line segment joining any two points in it, entirely lies on it.  🌑 General Equation of Straight Line : Any equation of first degree of t…

Complex Number  What is Complex Number ? The system of real numbers is not sufficient to solve all the algebraic equations. There are no real number which can satisfy the elementary quadratic equation X² + 1 = 0 or X²= -1 ( …

🌑 Vectors : There are quantities in physics and science characterized by both magnitude and direction, such as displacement, velocity, force, and acceleration. To describe such quantities, we introduce the concept of a vecto…