( \left\(\sqrt{5}+\sqrt{3}\right\)2-\left\(\sqrt{5}-\sqrt{3}\right\)2 ) का मान क्या है?

What is the value of ( \left\(\sqrt{5}+\sqrt{3}\right\)2-\left\(\sqrt{5}-\sqrt{3}\right\)2 )?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

A. \(4\sqrt{15}\)

Step 1

Concept

Use ( (a+b)2-(a-b)2=4ab ). Here \(4\sqrt{5}\sqrt{3}=4\sqrt{15}\).

Step 2

Why this answer is correct

The correct answer is A. \(4\sqrt{15}\). Use ( (a+b)2-(a-b)2=4ab ). Here \(4\sqrt{5}\sqrt{3}=4\sqrt{15}\).

Step 3

Exam Tip

सूत्र ( (a+b)2-(a-b)2=4ab ) लगाएँ। यहाँ \(4\sqrt{5}\sqrt{3}=4\sqrt{15}\) मिलेगा।

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Mathematics Answer, Explanation and Revision Hints

( \left\(\sqrt{5}+\sqrt{3}\right\)2-\left\(\sqrt{5}-\sqrt{3}\right\)2 ) का मान क्या है? / What is the value of ( \left\(\sqrt{5}+\sqrt{3}\right\)2-\left\(\sqrt{5}-\sqrt{3}\right\)2 )?

Correct Answer: A. \(4\sqrt{15}\). Explanation: सूत्र ( (a+b)2-(a-b)2=4ab ) लगाएँ। यहाँ \(4\sqrt{5}\sqrt{3}=4\sqrt{15}\) मिलेगा। / Use ( (a+b)2-(a-b)2=4ab ). Here \(4\sqrt{5}\sqrt{3}=4\sqrt{15}\).

Which concept should I revise for this Mathematics MCQ?

Use ( (a+b)2-(a-b)2=4ab ). Here \(4\sqrt{5}\sqrt{3}=4\sqrt{15}\).

What exam hint can help solve this Mathematics question?

सूत्र ( (a+b)2-(a-b)2=4ab ) लगाएँ। यहाँ \(4\sqrt{5}\sqrt{3}=4\sqrt{15}\) मिलेगा।