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Two equations (I) and (II) are given in ...

Two equations (I) and (II) are given in each questions . On the basis of these equations you have to decide the relation between 'x' and 'y' and give answer
I. ` 391 x^(2) + 1344 x + 1073 = 0 `
II. ` 437 y^(2) + 1074 y + 589 = 0 `

A

If ` x gt y `

B

If `x ge y`

C

If ` x lt y `

D

If x = y or Relation cannot be established

Text Solution

AI Generated Solution

The correct Answer is:
To find the relationship between \( x \) and \( y \) based on the given equations, we will solve each quadratic equation separately and then compare the values of \( x \) and \( y \). ### Step 1: Solve the first equation for \( x \) The first equation is: \[ 391x^2 + 1344x + 1073 = 0 \] Using the quadratic formula: \[ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \] Here, \( a = 391 \), \( b = 1344 \), and \( c = 1073 \). ### Step 2: Calculate the discriminant for the first equation Calculate \( b^2 - 4ac \): \[ b^2 = 1344^2 = 1806336 \] \[ 4ac = 4 \times 391 \times 1073 = 1670924 \] \[ \text{Discriminant} = b^2 - 4ac = 1806336 - 1670924 = 128412 \] ### Step 3: Substitute values into the quadratic formula Now substitute the values into the quadratic formula: \[ x = \frac{-1344 \pm \sqrt{128412}}{2 \times 391} \] ### Step 4: Calculate the square root and the values of \( x \) Calculate \( \sqrt{128412} \): \[ \sqrt{128412} \approx 358.5 \] Now substitute back: \[ x = \frac{-1344 \pm 358.5}{782} \] Calculating the two possible values for \( x \): 1. \( x_1 = \frac{-1344 + 358.5}{782} \approx -1.25 \) 2. \( x_2 = \frac{-1344 - 358.5}{782} \approx -2.17 \) ### Step 5: Solve the second equation for \( y \) The second equation is: \[ 437y^2 + 1074y + 589 = 0 \] Using the quadratic formula again: \[ y = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \] Here, \( a = 437 \), \( b = 1074 \), and \( c = 589 \). ### Step 6: Calculate the discriminant for the second equation Calculate \( b^2 - 4ac \): \[ b^2 = 1074^2 = 1151076 \] \[ 4ac = 4 \times 437 \times 589 = 1025784 \] \[ \text{Discriminant} = b^2 - 4ac = 1151076 - 1025784 = 125292 \] ### Step 7: Substitute values into the quadratic formula for \( y \) Now substitute the values into the quadratic formula: \[ y = \frac{-1074 \pm \sqrt{125292}}{2 \times 437} \] ### Step 8: Calculate the square root and the values of \( y \) Calculate \( \sqrt{125292} \): \[ \sqrt{125292} \approx 354.5 \] Now substitute back: \[ y = \frac{-1074 \pm 354.5}{874} \] Calculating the two possible values for \( y \): 1. \( y_1 = \frac{-1074 + 354.5}{874} \approx -0.82 \) 2. \( y_2 = \frac{-1074 - 354.5}{874} \approx -1.63 \) ### Step 9: Compare the values of \( x \) and \( y \) Now we have: - \( x_1 \approx -1.25 \), \( x_2 \approx -2.17 \) - \( y_1 \approx -0.82 \), \( y_2 \approx -1.63 \) Comparing: - For \( y_1 \approx -0.82 \): \( y_1 > x_2 \) (since -0.82 > -2.17) - For \( y_2 \approx -1.63 \): \( y_2 < x_1 \) (since -1.63 < -1.25) ### Conclusion Since the values of \( x \) and \( y \) do not consistently establish a relationship (one is greater in one case and lesser in another), we conclude that the relationship between \( x \) and \( y \) cannot be established. ### Final Answer The correct option is \( D \): The relation cannot be established. ---
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