यदि (\left\(3^{x}\right\)^{2}=729), तो (x) का मान क्या है?
If (\left\(3^{x}\right\)^{2}=729), what is the value of (x)?
Explanation opens after your attempt
Correct Answer
B. (3)
Concept
We have (\left\(3^{x}\right\)^{2}=3^{2x}) and \(729=3^{6}\), so (2x=6) and (x=3). In exams, rewrite both sides with the same base.
Why this answer is correct
The correct answer is B. (3). We have (\left\(3^{x}\right\)^{2}=3^{2x}) and \(729=3^{6}\), so (2x=6) and (x=3). In exams, rewrite both sides with the same base.
Exam Tip
(\left\(3^{x}\right\)^{2}=3^{2x}) और \(729=3^{6}\), इसलिए (2x=6) और (x=3)। परीक्षा में दोनों पक्षों को समान आधार में लिखें।
Login to save your score, XP, coins and progress.