27 Replies
@Apu
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.Can you try taking (a-b)=x then equate 2x²+3x= elements of B set?
ok
maybe from the solution of x we can get some hint such as equating with 0 one of the solutions will be a=b
or u can solve it byb making cases
hmm?
like there are only 5 terms in set b so u can make cases for all them
do u know abt A x A ?
yes
its the cartesian product ?
which means
(a,b)
yes
lies in cartesian plane
lets
if x comes 1
what does that mean ?
(a,b) belongs to 1 ?
x need to be
natural
which means
x cant be 1 if ur saying x = (a,b)
and here they are asking number of elements in the resultant set do u know that
and if u hv time plz do make cases and solve it will clear ur doubt
That means (a-b)=1 , you'll find such expressions in A×A
x≠(a,b) (a,b) belongs to A×A and x is just a substitution
substitution of a-b ?
Yes
oh mb
Can't understand
Bhai ye kaisa calculation ki hai tune🙂
Galat ki hai
Abhi yaad
Aaya
Pta nhi
Silly mistakes
Itna bada blunder
Mai waapas banata hu
Ruko ek baar
@bingbong x=0
Aa rha sirf
Aur
X=-2
that was the first and only case i calculated with 2(a-b)²+3(a-b)=0, tumhe 5 cases karne k baad x ka sirf do integral values bane?
Hmm
18 cases ban rhe hai
Haa
Answer aa gya
Lol
Khud hi
Se ban gya
good
Thank you for telling how to do so
👍
Abhi do this and close the thread
ok
+solved @bingbong
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