( \sqrt{7}\(4+\sqrt{7}\) ) का मान क्या है?
What is the value of ( \sqrt{7}\(4+\sqrt{7}\) )?
Explanation opens after your attempt
B. \(4\sqrt{7}+7\)
Concept
By distributive law, \( \sqrt{7}\times4+\sqrt{7}\times\sqrt{7}=4\sqrt{7}+7 \). Multiplying the same square root gives the radicand.
Why this answer is correct
The correct answer is B. \(4\sqrt{7}+7\). By distributive law, \( \sqrt{7}\times4+\sqrt{7}\times\sqrt{7}=4\sqrt{7}+7 \). Multiplying the same square root gives the radicand.
Exam Tip
वितरण नियम से \( \sqrt{7}\times4+\sqrt{7}\times\sqrt{7}=4\sqrt{7}+7 \)। समान वर्गमूल का गुणन अंदर की संख्या देता है।
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