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Vijay posted an Question
April 07, 2021 • 12:03 pm 30 points
  • IIT JAM
  • Mathematics (MA)

Onlyshow onto part

please send a solution to the problem given in the attachment

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    Deepak singh 1 Best Answer

    Refer attached

    cropped3154911718146729413.jpg
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    doubt

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    in V3 , general element are of type (a1,a2,a3) , that's why we have taken (a1,a2,a3) . I have taken general element , and you are asking about image element . you can think , which will be more powerful ... So , we always take general element to show onto..

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    ok

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    what about the domain? why not (a1,a2,a3)

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    f(a1,a2,a3)= (a1,a2,aa3) not equal to (a1,a2,a3) . we have let (a1,a2,a3) in codomain , so we want such element in domain , which gives (a1,a2,a3) after applying f .

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    so acc. to the question we decide the domain and we will always take the general co-domain. right?

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    yes , all these are 11 class NCERT concepts.. try once their example , that will clear your doubt ..

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    Thank You, Deepak sir!

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