1.If (1,−2)(1,-2)(1,−2) is focus and x+y−2=0x+y-2=0x+y−2=0 is directrix of 17x2−2xy+17y2−32x+76y+86=017x^2-2xy+17y^2-32x+76y+86=017x2−2xy+17y2−32x+76y+86=0, then eccentricity isa.15\frac{1}{5}51b.12\frac{1}{2}21c.13\frac{1}{3}31d.14\frac{1}{4}41Login to continueOnly logged in users canattempt or see the solution.
