Questions
a
−423<α<526
b
0<α<526
c
−423<α<0
d
R
detailed solution
Correct option is A
∵P1+α2,2+α2 lies between the parallel lines x+2y=1 and 2x+4y=15 , then 1+α2+22+α2-121+α2+42+α2-15<0⇒4+3α2-5+6α2<0 ⇒α+423α-526<0∴-423<α<526Talk to our academic expert!
Similar Questions
If the lines represented by the equation are rotated about the point through an angle of one in clockwise direction and the other in anticlockwise direction, so that they become perpendicular, then the equation of the pair of lines in the new position is
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