यदि (x=-7) है तो \( \sqrt{x^2}-2x \) का मान क्या होगा?

If (x=-7), what is the value of \( \sqrt{x^2}-2x \)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

A. (21)

Step 1

Concept

\( \sqrt{x^2}=|x|=7 \) and (-2x=14). Therefore the total is (21).

Step 2

Why this answer is correct

The correct answer is A. (21). \( \sqrt{x^2}=|x|=7 \) and (-2x=14). Therefore the total is (21).

Step 3

Exam Tip

\( \sqrt{x^2}=|x|=7 \) और (-2x=14) है। इसलिए कुल (21) मिलेगा।

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Mathematics Answer, Explanation and Revision Hints

यदि (x=-7) है तो \( \sqrt{x^2}-2x \) का मान क्या होगा? / If (x=-7), what is the value of \( \sqrt{x^2}-2x \)?

Correct Answer: A. (21). Explanation: \( \sqrt{x^2}=|x|=7 \) और (-2x=14) है। इसलिए कुल (21) मिलेगा। / \( \sqrt{x^2}=|x|=7 \) and (-2x=14). Therefore the total is (21).

Which concept should I revise for this Mathematics MCQ?

\( \sqrt{x^2}=|x|=7 \) and (-2x=14). Therefore the total is (21).

What exam hint can help solve this Mathematics question?

\( \sqrt{x^2}=|x|=7 \) और (-2x=14) है। इसलिए कुल (21) मिलेगा।