Find the value of 'p' for which the pair of equations x+2y=3, 2x+py=5 has no soln
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Hii friend,
X +2Y = 2........(1)
2X +PY = 5......(2)
These equations are in the form of AX1+BY1+C2 and AX2+BY2+C2.
Where,
A1 = 1 , B1 = 2 and C1 = -2
AND,
A2= 2 , B2 = P , C2 = -5
For a no solution we must have,
A1/A2 = B1/B2 is not equal to C1/C2.
1/2 = 2/P is not equal to -2/-5
=> 1/2 = 2/P and 2/P not = -2/-5
=> P = 4 and -2P = -10
=> P= 4 and P not= -10/-2 not = 5
Clearly P = 4
HOPE IT WILL HELP YOU.... :-)
X +2Y = 2........(1)
2X +PY = 5......(2)
These equations are in the form of AX1+BY1+C2 and AX2+BY2+C2.
Where,
A1 = 1 , B1 = 2 and C1 = -2
AND,
A2= 2 , B2 = P , C2 = -5
For a no solution we must have,
A1/A2 = B1/B2 is not equal to C1/C2.
1/2 = 2/P is not equal to -2/-5
=> 1/2 = 2/P and 2/P not = -2/-5
=> P = 4 and -2P = -10
=> P= 4 and P not= -10/-2 not = 5
Clearly P = 4
HOPE IT WILL HELP YOU.... :-)
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