4. COUNTING NUMBERS AND FRACTIONS,
TOGETHER WITH THEIR NEGATIVES ARE
COLLECTIVELY CALLED RATIONAL NUMBER.
NUMBERS WHICH ARE NOT RATIONAL ARTE
CALLED IRRATIONAL.
E.G. √2,√3 ARE IRRATIONAL.
5. THE SQUARES OF NUMBERS 1.4,
1.41, 1.414………GET CLOSER
&CLOSER TO 2.
THESE RATIONAL NUMBERS ARE
CALLED APPROXIMATE VALUES OF
√2.