Question 67

Mathematics Linear and Quadratic Equations Easy

Given below are two statements:

One is labelled as Assertion A and the other is labelled as Reason R .
Assertion A: If \( a \neq b \) , then \( (a, b) \neq(b, a) \)
Reason R. (4,-3) lies in quadrant IV.
In the light of the above statements, choose the correct answer from the options given below

(A) Both \( A \) and \( R \) . are true and \( R \) is the correct explanation of \( A \)
(B) Both \( A \) and \( R \) are true but \( R \) is not the correct explanation of \( A \)
(C) \( A \) is true but \( R \) is false
(D) \( A \) is false but \( R \) is true.
View Dynamic Solution & Explanation
Correct Solution: Option B

Step-by-step Solution:

Let's analyze both statements:

- Assertion A: If \( a \neq b \), then \( (a, b) \neq (b, a) \).
- This is true because an ordered pair \( (a, b) \) is not the same as \( (b, a) \) when \( a \neq b \). Order matters in ordered pairs.

- Reason R: (4, -3) lies in quadrant IV.
- In the Cartesian coordinate system, the fourth quadrant (Quadrant IV) contains points where the x-coordinate is positive and the y-coordinate is negative. Since (4, -3) has a positive x-value and a negative y-value, this statement is also true.

Now, does Reason R explain Assertion A?
- No, because the fact that (4, -3) is in Quadrant IV has nothing to do with why \( (a, b) \neq (b, a) \) when \( a \neq b \).

Thus, the correct answer is:
(B) Both A and R are true but R is not the correct explanation of A.