InterviewSolution
Saved Bookmarks
| 1. |
the lines `(p+2q)x+(p-3q)y=p-q` for different values of `p&q` passes trough the fixed point is:A. `(3/2, 5/2)`B. `(2/5, 2/5)`C. `(3/5, 3/5)`D. `(2/5, 3/5)` |
|
Answer» Correct Answer - D As given As given, `(p+2q)x+(p-3q)y=p-q` `implies px+2qx+py-3qy=p-q` `implies p(x+y)-q(3y-2x)=p-q` Equation co-efficient of p and q `implies x+y=1 and 3y-2x=1` Solving these, we get `x=2/5, y=3/5`. So, line passes through `(2/5, 3/5)`. |
|