\(\sqrt{c}\times\sqrt{12}=18\) और (c) धनात्मक है। (c) का मान क्या है?
If \(\sqrt{c}\times\sqrt{12}=18\) and (c) is positive, what is the value of (c)?
Explanation opens after your attempt
C. (27)
Concept
\(\sqrt{c}\times\sqrt{12}=\sqrt{12c}\).
Why this answer is correct
\(\sqrt{12c}=18\), so (12c=324) and (c=27).
Exam Tip
In square-root equations, square both sides to solve. चरण 1: \(\sqrt{c}\times\sqrt{12}=\sqrt{12c}\)। चरण 2: \(\sqrt{12c}=18\), इसलिए (12c=324) और (c=27)। चरण 3: वर्गमूल समीकरण में दोनों तरफ वर्ग करके हल करें।
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