Ap Eapcet
Straight Lines And Pair Of Straight Lines
AP EAPCET 2021 - 19th August Evening Shift
MCQ+1 / -02021
If the orthocenter of the triangle formed by the lines \(2 x+3 y-1=0, x+2 y+1=0\) and \(a x+b y-1=0\) lies at origin, then \(\frac{1}{a}+\frac{1}{b}\) is equal to