solve 11 and 12 quedtions
Attachments:
Answers
Answered by
1
Here,
( a+bx+ (2a-b)y=21
2x+3y=7
according to question,
infinitely many solution possible
so, (a+b)/2=2a-b/3=21/7
(a+b)/2 =21/7 =3
(a+b)=6 __________(1)
again,
( 2a-b)=21/7=3
(2a-b)=9. _________(2)
solve equations (1) and(2)
3a=15
a=5 and b=1
Hence,a =5 and b =1 then , infinitely many solution possible of given equation
( a+bx+ (2a-b)y=21
2x+3y=7
according to question,
infinitely many solution possible
so, (a+b)/2=2a-b/3=21/7
(a+b)/2 =21/7 =3
(a+b)=6 __________(1)
again,
( 2a-b)=21/7=3
(2a-b)=9. _________(2)
solve equations (1) and(2)
3a=15
a=5 and b=1
Hence,a =5 and b =1 then , infinitely many solution possible of given equation
Similar questions