यदि \(A={x \in \mathbb{Z}:x^2=9}\) और \(B=\{-3,3\}\), तो सही कथन चुनिए।

If \(A={x \in \mathbb{Z}:x^2=9}\) and \(B=\{-3,3\}\), choose the correct statement.

Explanation opens after your attempt
Correct Answer

A. (A=B)

Step 1

Concept

The integer solutions of \(x^2=9\) are (x=3) and (x=-3).

Step 2

Why this answer is correct

The elements of (A) are exactly (-3,3).

Step 3

Exam Tip

Since (A) and (B) have the same elements, (A=B). चरण 1: \(x^2=9\) के पूर्णांक हल (x=3) और (x=-3) हैं। चरण 2: (A) के तत्व (-3,3) ही हैं। चरण 3: (A) और (B) के तत्व समान हैं इसलिए (A=B)।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A={x \in \mathbb{Z}:x^2=9}\) और \(B=\{-3,3\}\), तो सही कथन चुनिए। / If \(A={x \in \mathbb{Z}:x^2=9}\) and \(B=\{-3,3\}\), choose the correct statement.

Correct Answer: A. (A=B). Explanation: चरण 1: \(x^2=9\) के पूर्णांक हल (x=3) और (x=-3) हैं। चरण 2: (A) के तत्व (-3,3) ही हैं। चरण 3: (A) और (B) के तत्व समान हैं इसलिए (A=B)। / Step 1: The integer solutions of \(x^2=9\) are (x=3) and (x=-3). Step 2: The elements of (A) are exactly (-3,3). Step 3: Since (A) and (B) have the same elements, (A=B).

Which concept should I revise for this Mathematics MCQ?

The integer solutions of \(x^2=9\) are (x=3) and (x=-3).

What exam hint can help solve this Mathematics question?

Since (A) and (B) have the same elements, (A=B). चरण 1: \(x^2=9\) के पूर्णांक हल (x=3) और (x=-3) हैं। चरण 2: (A) के तत्व (-3,3) ही हैं। चरण 3: (A) और (B) के तत्व समान हैं इसलिए (A=B)।