Arithmatical - Simplification
1. | 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 stands for Bracket, O for of, D for Division, M for Multiplication, A for Addition and S for Subtraction. Thus, 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. |
---|
2. | Modulus of a Real Number : Modulus of a real number a is defined as 1a1 = Thus, |5| = 5 and |-5| = -(-5) = 5. |
---|
3. | Virnaculum (or Bar) : When an expression contains Virnaculum, before applying the ‘BODMAS’ rule, we simplify the expression under the Virnaculum. |
---|