यदि (f(x)=\log(x-2)) और (g(x)=\sqrt{8-x}) हैं, तो ((fg)(x)) का प्रांत क्या है?
If (f(x)=\log(x-2)) and (g(x)=\sqrt{8-x}), what is the domain of ((fg)(x))?
Explanation opens after your attempt
A. ((2,8])
Concept
The logarithm needs (x-2>0), and the square root needs \(8-x\ge 0\). Hence the common domain is ((2,8]).
Why this answer is correct
The correct answer is A. ((2,8]). The logarithm needs (x-2>0), and the square root needs \(8-x\ge 0\). Hence the common domain is ((2,8]).
Exam Tip
लघुगणक के लिए (x-2>0) और वर्गमूल के लिए \(8-x\ge 0\) चाहिए। इसलिए संयुक्त प्रांत ((2,8]) है।
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