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CBSE Class 12-science Answered

Please solve the below question
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Asked by akshitaasia | 02 Jan, 2018, 06:56: PM
answered-by-expert Expert Answer
begin mathsize 16px style now space two space conditions straight a not equal to 0 space & space straight b equals 0....... straight a asterisk times straight b equals straight a.......1 straight a equals 0 space & space straight b not equal to 0....... straight a asterisk times straight b equals open vertical bar straight a close vertical bar plus straight b equals 0 plus straight b equals straight b......2 form space 1 space and space 2 space straight a equals straight b so space straight b asterisk times straight a equals straight a asterisk times straight b let space straight e space be space the space identity space element space for space asterisk times so straight a asterisk times straight e equals straight a........ from space given space straight e equals 0 end style
Answered by Arun | 09 Jan, 2018, 05:16: PM

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CBSE 12-science - Maths
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