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