फलन (f(x)=\log_5(4-x)) का प्रांत कौन सा है?
Which is the domain of (f(x)=\log_5(4-x))?
Explanation opens after your attempt
A. (\(-\infty,4\))
Concept
The logarithm argument must satisfy (4-x>0). Therefore (x<4).
Why this answer is correct
The correct answer is A. (\(-\infty,4\)). The logarithm argument must satisfy (4-x>0). Therefore (x<4).
Exam Tip
लघुगणक का आर्गुमेंट (4-x>0) होना चाहिए। इसलिए (x<4)।
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