Find important formulae from unit Heat and Thermodynamics for quick revision. This unit contributes about 10 percent of total questions in any entrance examinations. When exams are round the corner ...

Get important terms and formulae of unit Trigonometric Function. This unit includes chapters: Trigonometric Functions, Trigonometric Identities and Inverse trigonometric function. This quick revision ...

A formula is a rule that links variables and can be written using mathematical symbols. Substitute the given values for the length of one side (12) and the number of sides (5). Follow the formula ...

The subject of a formula is the variable that is being worked out. It can be recognised as the letter on its own on one side of the equals sign. For example, in the formula for the area of a rectangle ...