Vikrant Sharma
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Các bài viết của tác giả
Đọc và khám phá các bài viết của tác giả
Quadratic Equations
A quadratic equation is a second-degree polynomial written in the form of ax² + bx + c = 0, where a ≠ 0. It is used to solve problems involving area, velocity, and motion paths. For example, it is used to calculate the area of different shapes, the velocity of moving objects, and the trajectories of objects following parabolic paths, such as projectiles. The solutions to a quadratic equation are the points where its parabola-shaped graph crosses the x-axis. These solutions are called roots or zeros.
Published On 12-12-2025
Coefficient
In an algebraic expression, a coefficient is the numerical factor of the variable. It is typically a number, but a symbol representing a number can also act as a coefficient. For example, x is the variable and 2 is the coefficient in the expression, 2x².
Published On 12-12-2025
Sigma Notation
In shorthand, a sigma notation is used to indicate ‘sum’ with the help of the Greek letter (sigma). In this article, we shall explore sigma notation, useful formulas related to summation, and solved examples.
Published On 12-12-2025