कौन-सा व्यंजक अपरिमेय है?
Which expression is irrational?
Explanation opens after your attempt
C. \(\sqrt{3}+\sqrt{12}\)
Concept
(\(\sqrt{2}\)2=2), \(\sqrt{2}\times\sqrt{8}=4\), and \(\sqrt{5}\times\sqrt{20}=10\) are rational.
Why this answer is correct
\(\sqrt{3}+\sqrt{12}=3\sqrt{3}\), which is irrational.
Exam Tip
Treat addition and multiplication of surds differently. चरण 1: (\(\sqrt{2}\)2=2), \(\sqrt{2}\times\sqrt{8}=4\), और \(\sqrt{5}\times\sqrt{20}=10\) परिमेय हैं। चरण 2: \(\sqrt{3}+\sqrt{12}=\sqrt{3}+2\sqrt{3}=3\sqrt{3}\), जो अपरिमेय है। चरण 3: जोड़ और गुणन को अलग-अलग नियमों से समझें।
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