0 reads0 ratings0 helpful
If \(y=|x+2|-|x-2|\) and \(x>2\), what is the value of \(y\)?यदि फलन \(y=|x+2|-|x-2|\) में \(x>2\), तो \(y\) का मान क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: 44
When \(x>2\), both \(x+2\) and \(x-2\) are positive. Hence, \(|x+2|=x+2\) and \(|x-2|=x-2\), so \(y=(x+2)-(x-2)=4\). The option \(2x\) results from mishandling the subtraction of the second modulus term. Exam tip: determine the sign of each expression inside an absolute value before removing the modulus.जब \(x>2\), तब \(x+2>0\) और \(x-2>0\), इसलिए \(|x+2|=x+2\) तथा \(|x-2|=x-2\)। अतः \(y=(x+2)-(x-2)=4\)। विकल्प \(2x\) तब मिलता है जब ऋणात्मक पद को सही ढंग से घटाया नहीं जाता। परीक्षा-युक्ति: मापांक वाले व्यंजक में पहले प्रत्येक अंदरूनी पद का चिह्न निर्धारित करें।
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
