Question

what is set a=(v:v€R,v²=49,2v=14 or write this set in roaster form?​

Answer 1

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set builder form:-

• a={v:v€R,v²=49,2v=14}

It means it has to be a real no .

so,

v²=49

v=-7 and 7

But,

2V=14

so,

-7×2=-14(it is not a element)

7×2=14(It is the only one element of set)

Roster form:-

• {7 }