If the point P3a2,1 lies between the two different lines x+y=a and x+y=2a , then the least positive integral value of a is
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
answer is 3.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
Point 32a,1 lies between two different lines x+y=a and x+y=2a . If a point P(x1,y1) lies in between two parallel lines L1=0 and L2=0 if and only if L11×L22<0∴ 32a+1−a32a+1−2a<0a2+11-a2<0a+2a-2>0a∈(−∞,−2)∪(2,∞)Therefore, the least positive integral value of a is 3