यदि (f(x)=|x|+x) और (g(x)=|x|-x) हैं, तो (x<0) के लिए ((f+g)(x)) क्या है?
If (f(x)=|x|+x) and (g(x)=|x|-x), what is ((f+g)(x)) for (x<0)?
Explanation opens after your attempt
D. (2|x|)
Concept
((f+g)(x)=2|x|), and for (x<0) it is also (-2x). Among the options, (2|x|) is a general correct form.
Why this answer is correct
The correct answer is D. (2|x|). ((f+g)(x)=2|x|), and for (x<0) it is also (-2x). Among the options, (2|x|) is a general correct form.
Exam Tip
((f+g)(x)=2|x|), और (x<0) पर यह (-2x) भी होता है। दिए विकल्पों में (2|x|) सामान्य और सही रूप है।
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