यदि (x=-7) है तो \( \sqrt{x^2}-2x \) का मान क्या होगा?
If (x=-7), what is the value of \( \sqrt{x^2}-2x \)?
Explanation opens after your attempt
A. (21)
Concept
\( \sqrt{x^2}=|x|=7 \) and (-2x=14). Therefore the total is (21).
Why this answer is correct
The correct answer is A. (21). \( \sqrt{x^2}=|x|=7 \) and (-2x=14). Therefore the total is (21).
Exam Tip
\( \sqrt{x^2}=|x|=7 \) और (-2x=14) है। इसलिए कुल (21) मिलेगा।
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