यदि \(y=x^2\) और (y=|x|+2) के ग्राफ मिलते हैं, तो कितने प्रतिच्छेद होंगे?

If the graphs \(y=x^2\) and (y=|x|+2) meet, how many intersections are there?

Explanation opens after your attempt
Correct Answer

A. (2)

Step 1

Concept

Let (t=|x|). Then \(t^2=t+2\), giving (t=2), so \(x=\pm2\). Substituting (t=|x|) helps in modulus equations.

Step 2

Why this answer is correct

The correct answer is A. (2). Let (t=|x|). Then \(t^2=t+2\), giving (t=2), so \(x=\pm2\). Substituting (t=|x|) helps in modulus equations.

Step 3

Exam Tip

मान लें (t=|x|), तब \(t^2=t+2\) से (t=2) मिलता है और \(x=\pm2\)। मापांक वाले समीकरण में (t=|x|) लेना उपयोगी है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(y=x^2\) और (y=|x|+2) के ग्राफ मिलते हैं, तो कितने प्रतिच्छेद होंगे? / If the graphs \(y=x^2\) and (y=|x|+2) meet, how many intersections are there?

Correct Answer: A. (2). Explanation: मान लें (t=|x|), तब \(t^2=t+2\) से (t=2) मिलता है और \(x=\pm2\)। मापांक वाले समीकरण में (t=|x|) लेना उपयोगी है। / Let (t=|x|). Then \(t^2=t+2\), giving (t=2), so \(x=\pm2\). Substituting (t=|x|) helps in modulus equations.

Which concept should I revise for this Mathematics MCQ?

Let (t=|x|). Then \(t^2=t+2\), giving (t=2), so \(x=\pm2\). Substituting (t=|x|) helps in modulus equations.

What exam hint can help solve this Mathematics question?

मान लें (t=|x|), तब \(t^2=t+2\) से (t=2) मिलता है और \(x=\pm2\)। मापांक वाले समीकरण में (t=|x|) लेना उपयोगी है।