MHT CET202312 May 2023Evening ShiftMathematicsPair of LinesActual
If the pair of lines given by (x +y )^2= (x^2+y^2 ) ^2 are perpendicular to each other, then is
Options
- A0
- B2
- C4
- D6
Correct answer
C. 4
Step-by-step solution
array ll & (x +y )^2= (x^2+y^2 ) ^2 & x^2 ^2 +y^2 ^2 +2 x y & =x^2 ^2 +y^2 ^2 & x^2 ( ^2 - ^2 )+2 x y =0 array This represents a pair of straight lines where a = ^2 - ^2 , h = and b =0 As lines are perpendicular, we get aligned & a+b=0 & ^2 = ^2 = 4 aligned