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TS EAMCET · Maths · Ellipse

The pole of the straight line \(x+4 y=4\) with respect to the ellipse \(x^2+4 y^2=4\) is

  1. A \((1,1)\)
  2. B \((1,4)\)
  3. C \((4,1)\)
  4. D \((4,4)\)
Verified Solution

Answer & Solution

Correct Answer

(A) \((1,1)\)

Step-by-step Solution

Detailed explanation

Equation of line is \(x+4 y-4=0\) \[ l=1, m=4, n=-4 \] and equation of ellipse is \[ \begin{aligned} \Rightarrow & x^2+4 y^2=4 \\ \Rightarrow & \frac{x^2}{4}+\frac{y^2}{1}=1 \\ & a^2=4, b^2=1 \end{aligned} \] Pole of the straight line with respect to ellipse…