यदि (f(x)=\sqrt{4-x-2}) और (g(x)=x+1) हैं तो ((fg)(x)) का प्रांत क्या है?
If (f(x)=\sqrt{4-x-2}) and (g(x)=x+1) then what is the domain of ((fg)(x))?
Explanation opens after your attempt
A. \([-2,2])
Concept
For the square root \(4-x^2\ge 0\), that is \(-2\le x\le 2\). The function (g(x)) is defined for all real (x).
Why this answer is correct
The correct answer is A. \([-2,2]). For the square root \(4-x^2\ge 0\), that is \(-2\le x\le 2\). The function (g(x)) is defined for all real (x).
Exam Tip
वर्गमूल के लिए \(4-x^2\ge 0\), यानी \(-2\le x\le 2\)। (g(x)) सभी वास्तविक (x) पर परिभाषित है।
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