Direction: In the following questions, a statement of assertion (A) i...
As irrational roots/zeros always occurs in pairs therefore, when one zero is (2 - √3) then other will be 2 + √3 . So, both A and R are correct and R explains A.
Thus (a) is correct option.
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Direction: In the following questions, a statement of assertion (A) i...
Assertion: (2 - √3) is one zero of the quadratic polynomial.
Reason: Irrational zeros (roots) always occur in pairs.
Explanation:
To understand why the correct answer is option 'A', let's break down the assertion and reason given in the question.
Assertion: (2 - √3) is one zero of the quadratic polynomial.
A quadratic polynomial is a polynomial of degree 2, which can be written in the form ax^2 + bx + c = 0, where a, b, and c are constants. The zeros of a quadratic polynomial are the values of x for which the polynomial becomes zero.
In this case, the zero of the polynomial is given as (2 - √3). This means that if we substitute (2 - √3) into the quadratic polynomial, it will result in zero.
Reason: Irrational zeros (roots) always occur in pairs.
The reason given in the question states that irrational zeros (or roots) always occur in pairs. This means that if one irrational number is a zero of a polynomial, another irrational number will also be a zero.
Now, let's analyze the given information in detail:
1. The zero given in the assertion, (2 - √3), is an irrational number because it involves the square root of a non-perfect square (√3).
2. According to the reason, if (2 - √3) is one zero of the quadratic polynomial, then there must be another irrational number that is also a zero.
3. This implies that the quadratic polynomial has two irrational zeros, which occur in a pair.
Therefore, both the assertion and the reason are true, and the reason explains why the given assertion is true. Hence, the correct answer is option 'A': Both assertion (A) and reason (R) are true, and reason (R) is the correct explanation of assertion (A).
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