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01. 'BODMAS' Rule : This rule depicts the correct sequence in which the operations are to be executed, so as to find out the value of a given expression.
Here
'B' stands for ' Brackets',
'O' for 'of ',
'D' for 'Division',
'M' for 'Multiplication'
'A' for 'Addition'
'S' for 'Subtraction'.
Thus, in simplifying an expressions, first of all the brackets must be removed, strictly in the order ( ), { }, [ ].
After removing the brackets, we must use the following operations strictly in the order:
(I) of (II) Division (III) Multiplication (IV) Addition (V) Subtraction.
02. Modulus of a Real Number:
Modulus of a real number a is defined as
Thus
03. Virnaculum (or Bar): When an expression contains Virnaculum, before applying the 'BODMAS' rule, we simplify the expression under the Virnaculum.
RS AGGARWAL'S
SIMPLIFICATION
IMPORTANT CONCEPT
01. 'BODMAS' Rule : This rule depicts the correct sequence in which the operations are to be executed, so as to find out the value of a given expression.
Here
'B' stands for ' Brackets',
'O' for 'of ',
'D' for 'Division',
'M' for 'Multiplication'
'A' for 'Addition'
'S' for 'Subtraction'.
Thus, in simplifying an expressions, first of all the brackets must be removed, strictly in the order ( ), { }, [ ].
After removing the brackets, we must use the following operations strictly in the order:
(I) of (II) Division (III) Multiplication (IV) Addition (V) Subtraction.
02. Modulus of a Real Number:
Modulus of a real number a is defined as
| a | ={ | a, if a > 0 |
| -a, if a < 0 |
Thus
| 5 | = 5 and | -5 | = - | (-5) = 5. |
03. Virnaculum (or Bar): When an expression contains Virnaculum, before applying the 'BODMAS' rule, we simplify the expression under the Virnaculum.
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