- 'BODMAS' Rule:This rule depicts the correct sequence in which the operations are to be executed, so as to find out the value of given expression.Here B - Bracket,

O - of,

D - Division,

M - Multiplication,

A - Addition and

S - SubtractionThus, in simplifying an expression, first of all the brackets must be removed, strictly in the order (), {} and ||.After removing the brackets, we must use the following operations strictly in the order:(i) of (ii) Division (iii) Multiplication (iv) Addition (v) Subtraction. - Modulus of a Real Number:Modulus of a real number
*a*is defined as| *a*| =*a*, if*a*> 0- *a*, if*a*< 0Thus, |5| = 5 and |-5| = -(-5) = 5. - Virnaculum (or Bar):When an expression contains Virnaculum, before applying the 'BODMAS' rule, we simplify the expression under the Virnaculum.

# Simplification - Important Formulas | Aptitude

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