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The term “formula” has different meanings depending on the context. In the context of mathematics and science, a formula is a mathematical expression that describes a relationship or a rule. Formulas are often used to calculate or solve specific problems or to express a general principle.

## Formula

- Second Law of Thermodynamics Formula, Definition, Examples for Class 11
- Circumference of a Circle Formula, Meaning & Definition
- Volume of Hemisphere Formula, Definition, Examples
- Lens Formula- Magnification, Power of Lens Formula Derivation
- Cos2x Formula, Derivation & Solved Examples
- Volume of Cuboid Formula and Examples
- Formula
- Ammonia Formula, Symbol, Structure
- Volume of Cylinder Formula, Unit, and Questions

Here are a few examples of formulas from various fields:

**Physics – Newton’s Second Law of Motion:**F = ma This formula represents the relationship between force (F), mass (m), and acceleration (a) for an object. It states that the force applied to an object is directly proportional to its mass and acceleration.**Geometry – Area of a Rectangle:**A = length × width This formula calculates the area (A) of a rectangle based on its length and width.**Chemistry – Ideal Gas Law:**PV = nRT The ideal gas law describes the relationship between the pressure (P), volume (V), number of moles (n) of a gas, the ideal gas constant (R), and temperature (T).**Mathematics – Quadratic Formula:**The quadratic formula is used to find the solutions (roots) of a quadratic equation ax^2 + bx + c = 0, where a, b, and c are coefficients. x = (-b ± √(b^2 – 4ac)) / 2a**Economics – Compound Interest Formula:**A = P(1 + r/n)^(nt) This formula calculates the future value (A) of an investment with principal amount (P) that earns interest compounded (n) times per year at an annual interest rate (r) over a period of time (t).

These are just a few examples, and there are countless other formulas in mathematics, science, engineering, and various other fields. Formulas are valuable tools that simplify complex relationships and enable us to make calculations and predictions in a wide range of disciplines.