यदि \(A=\sqrt{80}+\sqrt{45}\) और \(B=7\sqrt{5}\) हैं, तो कौन-सा कथन सही है?
If \(A=\sqrt{80}+\sqrt{45}\) and \(B=7\sqrt{5}\), which statement is correct?
Explanation opens after your attempt
Correct Answer
A. (A=B)
Concept
\(\sqrt{80}=4\sqrt{5}\) and \(\sqrt{45}=3\sqrt{5}\), so \(A=7\sqrt{5}\). Hence (A=B).
Why this answer is correct
The correct answer is A. (A=B). \(\sqrt{80}=4\sqrt{5}\) and \(\sqrt{45}=3\sqrt{5}\), so \(A=7\sqrt{5}\). Hence (A=B).
Exam Tip
\(\sqrt{80}=4\sqrt{5}\) और \(\sqrt{45}=3\sqrt{5}\), इसलिए \(A=7\sqrt{5}\) है। अतः (A=B) है।
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