Please solve the below question

Asked by akshitaasia | 2nd Jan, 2018, 06:56: PM

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 | 9th Jan, 2018, 05:16: PM

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