यदि \(w=\sqrt{18}+\sqrt{13}\) है तो \(w^2-31\) का मान क्या है?

If \(w=\sqrt{18}+\sqrt{13}\), what is the value of \(w^2-31\)?

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

B. \(2\sqrt{234}\)

Step 1

Concept

\(w^2=18+13+2\sqrt{234}=31+2\sqrt{234}\). So \(w^2-31=2\sqrt{234}\).

Step 2

Why this answer is correct

The correct answer is B. \(2\sqrt{234}\). \(w^2=18+13+2\sqrt{234}=31+2\sqrt{234}\). So \(w^2-31=2\sqrt{234}\).

Step 3

Exam Tip

\(w^2=18+13+2\sqrt{234}=31+2\sqrt{234}\) है। इसलिए \(w^2-31=2\sqrt{234}\) है।

Question me issue ya doubt hai?

Answer, explanation, typing mistake ya suggestion directly hamari team ko bhejein. 📱Helpline (Call / WhatsApp): +91 7272824365

Related Mathematics Questions

FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(w=\sqrt{18}+\sqrt{13}\) है तो \(w^2-31\) का मान क्या है? / If \(w=\sqrt{18}+\sqrt{13}\), what is the value of \(w^2-31\)?

Correct Answer: B. \(2\sqrt{234}\). Explanation: \(w^2=18+13+2\sqrt{234}=31+2\sqrt{234}\) है। इसलिए \(w^2-31=2\sqrt{234}\) है। / \(w^2=18+13+2\sqrt{234}=31+2\sqrt{234}\). So \(w^2-31=2\sqrt{234}\).

Which concept should I revise for this Mathematics MCQ?

\(w^2=18+13+2\sqrt{234}=31+2\sqrt{234}\). So \(w^2-31=2\sqrt{234}\).

What exam hint can help solve this Mathematics question?

\(w^2=18+13+2\sqrt{234}=31+2\sqrt{234}\) है। इसलिए \(w^2-31=2\sqrt{234}\) है।