यदि (f:\(-\infty,2]\to\mathbb{R}\) तथा (f(x)=x-2) है, तो (f) के बारे में सही कथन क्या है?
If (f:\(-\infty,2]\to\mathbb{R}\) and (f(x)=x-2), what is the correct statement about (f)?
Explanation opens after your attempt
B. (f) एक-एक नहीं है क्योंकि (f(1)=f(-1))(f) is not one-one because (f(1)=f(-1))
Concept
प्रांत (\(-\infty,2]\) में (1) और (-1) दोनों शामिल हैं। / The domain (\(-\infty,2]\) contains both (1) and (-1).
Why this answer is correct
\(1\neq-1\), लेकिन (12=(-1)2=1)। / \(1\neq-1\), but (12=(-1)2=1).
Exam Tip
प्रांत यदि शून्य के दोनों ओर फैला हो, तो \(x^2\) एक-एक नहीं रहता। / If the domain spreads on both sides of zero, \(x^2\) is not one-one.
Login to save your score, XP, coins and progress.
QR scan karne par isi question ka correct answer aur explanation khula hua milega.
Open answer link