Assertion and Reasoning — task. Maths CBSE Live product, Class 10 (2025-26).

Assertion (A): If \(x=a\) is the root of a quadratic equation \(x^2-(a+b)x+k=0\) then the value of \(k\) is \(a-b\).

Reason (R): If \(x = 2\) is the root of a quadratic equation \(x^2-5x+k=0\) then the value of \(k\) is \(6\).

Assertion (A) is false but reason (R) is true.
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
Assertion (A) is true but reason (R) is false.

Did you find an error?

2. Assertion and Reasoning