कौन सा व्यंजक परिमेय संख्या है?
Which expression is a rational number?
Explanation opens after your attempt
Correct Answer
A. (\(\sqrt{28}\)\(\sqrt{7}\))
Concept
(\(\sqrt{28}\)\(\sqrt{7}\)=\sqrt{196}=14) which is rational. In exams keep multiplication and addition rules separate.
Why this answer is correct
The correct answer is A. (\(\sqrt{28}\)\(\sqrt{7}\)). (\(\sqrt{28}\)\(\sqrt{7}\)=\sqrt{196}=14) which is rational. In exams keep multiplication and addition rules separate.
Exam Tip
(\(\sqrt{28}\)\(\sqrt{7}\)=\sqrt{196}=14) है जो परिमेय है। परीक्षा में गुणन और जोड़ के नियम अलग रखें।
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