ExamBro
ExamBro
JEE Mains · Maths · STD 11 - 4.2 Quadratic equations and inequations

माना \(\mathrm{x}_1, \mathrm{x}_2, \mathrm{x}_3, \mathrm{x}_4\) समीकरण \(4 x^4+8 x^3-17 x^2-12 x+9=0\) के मूल हैं और \(\left(4+x_1^2\right)\left(4+x_2^2\right)\left(4+x_3^2\right)\left(4+x_4^2\right)=\frac{125}{16} m\) है। तो \(\mathrm{m}\) का मान ........... है।

  1. A \(357\)
  2. B \(347\)
  3. C \(657\)
  4. D \(221\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(221\)

Step-by-step Solution

Detailed explanation

\( 4 x^4+8 x^3-17 x^2-12 x+9 \) \( =4\left(x-x_1\right)\left(x-x_2\right)\left(x-x_3\right)\left(x-x_4\right)\) Put \(x=2 i -2 i\) \( 64-64 i+68-24 i+9=\left(2 i-x_1\right)\left(2 i-x_2\right)\left(2 i-x_3\right) \) \( \left(2 \mathrm{i}-\mathrm{x}_4\right) \)…
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app