0 votes 0 votes The four distinct points $(-a,-b),(0,0),(a,b),(a^2,ab)$ are vertices of parallelogram vertices of rectangle collinear lying on a circle Mathematical Logic coordinate-geometry + – jjayantamahata asked Mar 17, 2018 edited Mar 18, 2018 by Sukanya Das jjayantamahata 432 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
1 votes 1 votes It is option C. Akhilesh Singla answered Mar 17, 2018 Akhilesh Singla comment Share Follow See all 4 Comments See all 4 4 Comments reply ankitgupta.1729 commented Mar 17, 2018 reply Follow Share one another way of proving it by writing area of triangle in determinant form..if determinant = 0 then points will be collinear.. 0 votes 0 votes Akhilesh Singla commented Mar 17, 2018 reply Follow Share But then which three co-ordinates would we pick from the given four? 0 votes 0 votes ankitgupta.1729 commented Mar 17, 2018 reply Follow Share u can pick any 3 points.. 0 votes 0 votes Akhilesh Singla commented Mar 17, 2018 reply Follow Share Ok, thank you adding up this point. I didn't know this before. 1 votes 1 votes Please log in or register to add a comment.
0 votes 0 votes As I draw diagram as a=2,b=3 it shows a triangle so answer is (B). jjayantamahata answered Mar 17, 2018 jjayantamahata comment Share Follow See 1 comment See all 1 1 comment reply ankitgupta.1729 commented Mar 17, 2018 reply Follow Share answer should be (C).. 0 votes 0 votes Please log in or register to add a comment.