NCERT Solutions for Class 9 Maths Chapter 4 Exercise 4.2 Solutions

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NCERT Solutions for Class 9 Maths Chapter 4 Linear Equation in Two Variables Exercise 4.2 Solutions are based on linear equations in two variables that have infinitely several solutions.

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Exercise Solutions of Class 9 Maths Chapter 4 Linear Equation in Two Variables

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CBSE X Related Questions

  • 1.
    For an acute angle \(\theta\), if \(\sin \theta = \frac{1}{9}\), then value of \(\frac{9 \csc \theta + 1}{9 \csc \theta - 1}\) is

      • \(0\)
      • \(\frac{80}{81}\)
      • \(1\)
      • \(\frac{82}{80}\)

    • 2.
      If \( \alpha \) and \( \beta \) are two zeroes of a polynomial \( f(x) = px^2 - 2x + 3p \) and \( \alpha + \beta = \alpha\beta \), then value of p is :

        • \( -\frac{2}{3} \)
        • \( \frac{2}{3} \)
        • \( \frac{1}{3} \)
        • \( -\frac{1}{3} \)

      • 3.
        In the given figure, $PQ$ is tangent to the circle with centre $O$. $S$ is a point on the circle such that $\angle SQT = 55^\circ$. The $m\angle QPS$ is

          • $55^\circ$
          • $20^\circ$
          • $35^\circ$
          • $70^\circ$

        • 4.
          It is given that \(\triangle ABC \sim \triangle EDF\). Which of the following is not true?

            • \(\frac{\text{Perimeter of } \triangle ABC}{\text{Perimeter of } \triangle EDF} = \frac{AB}{ED}\)
            • \(\frac{AB}{ED} = \frac{AC}{EF}\)
            • \(\angle A = \angle D, \angle C = \angle F\)
            • \(\frac{AB + BC}{AC} = \frac{ED + DF}{EF}\)

          • 5.
            If roots of the quadratic equation \(x^2 - k\sqrt{3}x + 2 = 0\) are real and equal, then value of k is

              • \(-2\)
              • \(\sqrt{\frac{8}{3}}\)
              • \(1\)
              • \(2\)

            • 6.
              Which of the following graphs represents a polynomial with both zeroes being positive?

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