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High School Mathematics - 21.9 Rational and Irrational Numbers

 Set of rational and irrational numbers is called real numbers. Q = {set of rational numbers} Ql = {set of irrational numbers} To represent irrational numbers on number line To mark square root if 2 on the number line we take OA = OB = 1 unit. Then in right angle OAB, OB2 = OA2 + AB2 OB2 = 2, OB = Ö 2. Cut off OP = OB = Ö2 on number line. Thus the point P represents Ö 2 on number line. Directions: Answer the following.
 Q 1: Answer: Q 2: Answer: Q 3: Answer: Q 4: Show Ö7 on number lineAnswer: Q 5: Show Ö3 on number line.Answer: Q 6: Show Ö5 on number line.Answer: Q 7: Show Ö12 on number line.Answer: Q 8: Answer: Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!

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