(\sqrt{7}\(4+\sqrt{7}\)) का मान क्या है?
What is the value of (\sqrt{7}\(4+\sqrt{7}\))?
Explanation opens after your attempt
A. \(4\sqrt{7}+7\)
Concept
Apply distribution: \(\sqrt{7}\times4+\sqrt{7}\times\sqrt{7}\).
Why this answer is correct
This becomes \(4\sqrt{7}+7\).
Exam Tip
In such multiplication, remember \(\sqrt{7}\times\sqrt{7}=7\). चरण 1: वितरण नियम लगाएं: \(\sqrt{7}\times4+\sqrt{7}\times\sqrt{7}\)। चरण 2: यह \(4\sqrt{7}+7\) बनता है। चरण 3: समान वर्गमूलों के गुणन में \(\sqrt{7}\times\sqrt{7}=7\) याद रखें।
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