(\(\sqrt{45}+\sqrt{20}\)\(\sqrt{45}-\sqrt{20}\)) का मान क्या है?

What is the value of (\(\sqrt{45}+\sqrt{20}\)\(\sqrt{45}-\sqrt{20}\))?

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

A. (25)

Step 1

Concept

This is the \(a^2-b^2\) form, so the value is (45-20=25). In conjugate multiplication take the difference of squares directly.

Step 2

Why this answer is correct

The correct answer is A. (25). This is the \(a^2-b^2\) form, so the value is (45-20=25). In conjugate multiplication take the difference of squares directly.

Step 3

Exam Tip

यह \(a^2-b^2\) रूप है, इसलिए मान (45-20=25) है। संयुग्मी गुणन में सीधे वर्गों का अंतर लें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

(\(\sqrt{45}+\sqrt{20}\)\(\sqrt{45}-\sqrt{20}\)) का मान क्या है? / What is the value of (\(\sqrt{45}+\sqrt{20}\)\(\sqrt{45}-\sqrt{20}\))?

Correct Answer: A. (25). Explanation: यह \(a^2-b^2\) रूप है, इसलिए मान (45-20=25) है। संयुग्मी गुणन में सीधे वर्गों का अंतर लें। / This is the \(a^2-b^2\) form, so the value is (45-20=25). In conjugate multiplication take the difference of squares directly.

Which concept should I revise for this Mathematics MCQ?

This is the \(a^2-b^2\) form, so the value is (45-20=25). In conjugate multiplication take the difference of squares directly.

What exam hint can help solve this Mathematics question?

यह \(a^2-b^2\) रूप है, इसलिए मान (45-20=25) है। संयुग्मी गुणन में सीधे वर्गों का अंतर लें।