MATHEMATICS FOR CLASS XI CHATTER-7 SETS by Upendra yadav

Targeted Audience Students in Class XI . IIT-JEE -Competitive exam . General Public

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INTRODUCTION Upendra yadav B.Sc. (H Mathematics from Delhi University Qualified exam: IIT-JAM,

Z The Set g posihive thlegers : The Sety positive Rational numbers. R" : The Sef positive Real Numbers. k There are two mcthods d Repre sentat'ng a Sefs Ci) Roste or tabular form (i) Set builcler form 1n Roster dorm, all the elaments of a Set are Risted, the elements are being seperafed by Commas ond enclesed within braces

EX: The Set ae Naturae Number which divide 4 2 is , 2. 3, C. 1, 14, 21,42 (b) The Set all vowels in the Engash albhobet is a,e, t, o, u (c) The set am Natura, Numbers is represented by [1,3.5.. Note : , while wt,ting the Set 'n Roste, rm an element I's not geher takch as distinct aly epeated the elaments are

For exambRe: The set bkrs Jorming the word isHng elements has no releveh ce. (ji) .Th Set-builder form, all the elements a Set ossess a single Common property which is not possessed by ang eliment outside the sets. Ex: V=-Lx. ; is a vowel in English alphabet. } The set v is read as ' The set d a00x. Such x is a Vowee the Eng h asphabet, . and the braces stand der the set g alethe coloh stand or Such that'. For examp

A: is a nataral number and 3 < is read as" the set lan x Suchthat x.isa naturae andxLies betiveen 3 and lo. number B x is a natral Number which dlivides 42 -{ : s a vowel in the English Albhabet} C-{ : Z is an odd Natural Number }

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Upendra

B.Sc.(H) Mathematics from Delhi University, Qualified IIT JAM & NBHM. Exploring new things, Love being around children and helping kids.

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Tina nahata

2 years ago

sir aurangzeb ko likhte waqt source kya likh skte hai? ki hmne use kha se padha?

2

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Atul Kumar Pandey

a year ago

ncert and other text books. general studies by tata McGraw.

Archana Devi

4 months ago

write in roster form
A = {x:x is a king out of 52 playing cards}
B = { y:y is a spade out of 52 playing cards}
please write the answer of these questions

0

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Archana Devi

5 months ago

sir last example ma odd natural number ko jb roster form ma likhaga tb last ma infinite ka sign lagaga Kaya?

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Upendra

5 months ago

No....