फलन (f(x)=\log_{e}\left\(\frac{x-2}{7-x}\right\)) का प्रांत क्या है?
What is the domain of (f(x)=\log_{e}\left\(\frac{x-2}{7-x}\right\))?
Explanation opens after your attempt
A. ( (2,7) )
Concept
The logarithm input must satisfy \(\frac{x-2}{7-x}>0\). A sign check gives only (2<x<7).
Why this answer is correct
The correct answer is A. ( (2,7) ). The logarithm input must satisfy \(\frac{x-2}{7-x}>0\). A sign check gives only (2<x<7).
Exam Tip
लघुगणक के अंदर \(\frac{x-2}{7-x}>0\) होना चाहिए। संकेत जांच से केवल (2<x<7) मिलता है।
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