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,
Inicrvals as Subset q R Lat a,b ER and a b then the Set real y : a < <b } is capped an open "Interval and number s is clenoted by (a, b) The interval which Contai'ns the end point alsc is called Closed Interval and is denoted by La Lo, b)x: asx<b j is an open interval drom a to b including a but ex culding b <x s b is an open tnterval from a i Including b but excludlinq a
k The Set Lo, a) defines the Set af non negatve real number, while Set C-o, o) deines the Sch negathve real Number he Set-.) deschibe the set Real Numbers in Relation to a ine extendin-cto on Real Qine: (a,b] [a, b) ca b Ca,b) La,bl -a) is callid the Langth d ang intervals . .(Q, ).. la,b].[a,b),4(a,DJ * The number b the
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B.Sc.(H) Mathematics from Delhi University, Qualified IIT JAM & NBHM. Exploring new things, Love being around children and helping kids.