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JEE Mains · Maths · STD 11 - 10.2 parabola,ellipse,hyperbola

दीर्घवृत्त \(\frac{x^2}{25}+\frac{y^2}{16}=1\) की उस जीवा का समीकरण, जिसका मध्य-बिंदु \((3,1)\) है, वह __________ है।

  1. A \(48 x+25 y=169\)
  2. B \(5 x+16 y=31\)
  3. C \(25 x+101 y=176\)
  4. D \(4 x+122 y=134\)
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Answer & Solution

Correct Answer

(A) \(48 x+25 y=169\)

Step-by-step Solution

Detailed explanation

Equation of chord with given middle point \(\begin{aligned} & T=S_1 \\ & \Rightarrow \frac{3 x}{25}+\frac{\mathrm{y}}{16}-1=\frac{9}{25}+\frac{1}{16}-1 \\ & 48 \mathrm{x}+25 \mathrm{y}=144+25 \\ & 48 \mathrm{x}+25 \mathrm{y}=169 \text { Ans. } \end{aligned}\)
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