यदि \(f:\mathbb{R}\to\mathbb{R}\), (f(x)=x-3-3x), तो एकैकी न होने का सही प्रमाण कौन सा है?
If \(f:\mathbb{R}\to\mathbb{R}\), (f(x)=x-3-3x), which is a correct proof that it is not one-one?
Correct answer and explanation
A. (f(0)=f\(\sqrt{3}\)=0)
Concept
(f(0)=03-3\cdot0=0)। / (f(0)=03-3\cdot0=0).
Why this answer is correct
(f\(\sqrt{3}\)=\(\sqrt{3}\)3-3\sqrt{3}=3\sqrt{3}-3\sqrt{3}=0)। / (f\(\sqrt{3}\)=\(\sqrt{3}\)3-3\sqrt{3}=3\sqrt{3}-3\sqrt{3}=0).
Exam Tip
दो अलग आगतों का समान प्रतिबिंब मिल गया, इसलिए फलन एकैकी नहीं है। / Two distinct inputs have the same image, so the function is not one-one.
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