Find the value of 'p' for which the pair of equations
x+py=1; px+y=p2
has
has infinite many solutions
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The equations (p−3)x+3y−p=0
px+py−12=0
For infinite many solution
a
2
a
1
=
b
2
b
1
=
c
2
c
1
Here a
1
=p−3,b
1
=3,c
1
−p
a
2
=p,b
2
=p,c
2
=−12
p
p−3
=
p
3
=
−12
−1
Solving
p
3
=
−12
−1
⟹p
2
=36⟹p=±6
Now solving
p
p−3
=
−12
−1
⟹p−3=3⟹p=6
Hence the value of p=6.
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