\(\sqrt{7}+\sqrt{7}\) का मान क्या है?
What is the value of \(\sqrt{7}+\sqrt{7}\)?
Correct answer and explanation
C. \(2\sqrt{7}\)
Simple Explanation
दोनों पद समान करणी हैं: \(\sqrt{7}+\sqrt{7}=1\sqrt{7}+1\sqrt{7}=(1+1)\sqrt{7}=2\sqrt{7}\)। \(\sqrt{14}\) गलत है, क्योंकि \(\sqrt{a}+\sqrt{b}\) को सामान्यतः \(\sqrt{a+b}\) नहीं लिखा जा सकता। परीक्षा टिप: समान करणी वाले पदों में केवल उनके गुणांक जोड़ें। / Both terms are like surds: \(\sqrt{7}+\sqrt{7}=1\sqrt{7}+1\sqrt{7}=(1+1)\sqrt{7}=2\sqrt{7}\). \(\sqrt{14}\) is incorrect because \(\sqrt{a}+\sqrt{b}\) cannot generally be written as \(\sqrt{a+b}\). Exam tip: add only the coefficients of like surds.
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