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If the line L : 2(a a3 -3)x - ay - a a3 + 3a = 0 meets the parabola C at a point B on the line L2: x=1, then a is equal to- (a) -3 (b) -2 (c) 2 (d) 3 I just wanted to ask that is the line L tangent to parabola C as "meets" is mentioned. Also, I tried solving this taking L as a tangent to C, finding 'm' and then point of contact. At last I put x-coordinate point of contact =1, but didn't get the answer! Please help me out!

If the line L : 2(aa3 -3)x - ay - aa3 + 3a = 0 meets the parabola C at a point B on the line L2: x=1, then a is equal to-
(a) -3 (b) -2 (c) 2 (d) 3
I just wanted to ask that is the line L tangent to parabola C as "meets" is mentioned. Also, I tried solving this taking L as a tangent to C, finding 'm' and then point of contact. At last I put x-coordinate point of contact =1, but didn't get the answer! Please help me out!

Grade:11

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
Dear student

Yes the line is tangent

Please attach the solution so that we can identify the mistake and obtain correct answer

Regards
Vikas TU
14149 Points
3 years ago
Dear student 
Question is not clear 
Please attach an image, 
We will happy to  help you 
Good Luck
Cheers

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