यदि \(f:\mathbb{R}\to\mathbb{R}\) और (f(x)=x-3-3x), तो (f) एकैकी क्यों नहीं है?
If \(f:\mathbb{R}\to\mathbb{R}\) and (f(x)=x-3-3x), why is (f) not one-one?
Correct answer and explanation
A. क्योंकि (f(0)=f\(\sqrt{3}\))Because (f(0)=f\(\sqrt{3}\))
Concept
(f(0)=0) है। / (f(0)=0).
Why this answer is correct
(f\(\sqrt{3}\)=\(\sqrt{3}\)3-3\sqrt{3}=3\sqrt{3}-3\sqrt{3}=0), जबकि \(0\neq \sqrt{3}\)। / (f\(\sqrt{3}\)=\(\sqrt{3}\)3-3\sqrt{3}=3\sqrt{3}-3\sqrt{3}=0), while \(0\neq \sqrt{3}\).
Exam Tip
दो अलग इनपुट की समान छवि मिलने पर फलन एकैकी नहीं होता। / If two distinct inputs give the same image, the function is not one-one.
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