Assertion Reason Questions for Class 10 Maths Chapter 4 Quadratic Equations

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Assertion Reason Questions for Class 10 Maths Chapter 4 Quadratic Equations

Directions:
(a) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
(b) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
(c) If Assertion is correct but Reason is incorrect.
(d) If Assertion is incorrect but Reason is correct.

Q.1. Assertion: If one root of the quadratic equation 6x2 – x – k = 0 is 2/3, then the value of k is 2.
Reason: The quadratic equation ax2 + bx + c = 0, a ≠ 0 has almost two roots.

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Q.2. Assertion: (2x – 1)2 – 4x2 + 5 = 0 is not a quadratic equation.
Reason: An equation of the form ax2 + bx + c = 0, a ≠ 0, where a, b, c ∈ R is called a quadratic equation.

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Q.3. Assertion: The roots of the quadratic equation x2 + 2x + 2 = 0 are imaginary
Reason: If discriminant D = b2 – 4ac < 0 then the roots of quadratic equation ax2 + bx + c = 0 are imaginary.

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Q.4. Assertion: 3x2 – 6x + 3 = 0 has repeated roots.
Reason: The quadratic equation ax2 + bx + c = 0 have repeated roots if discriminant D > 0.

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