यदि \(f:\mathbb{R}\to\mathbb{R}\), (f(x)=x-3-12x), तो (f) एकैकी क्यों नहीं है?
Why is \(f:\mathbb{R}\to\mathbb{R}\), (f(x)=x-3-12x), not one-one?
Correct answer and explanation
A. क्योंकि (f(0)=f\(2\sqrt{3}\)) और \(0\neq2\sqrt{3}\)Because (f(0)=f\(2\sqrt{3}\)) and \(0\neq2\sqrt{3}\)
Concept
(f(0)=0) है। / (f(0)=0).
Why this answer is correct
(f\(2\sqrt{3}\)=\(2\sqrt{3}\)3-12\(2\sqrt{3}\)=24\sqrt{3}-24\sqrt{3}=0)। / (f\(2\sqrt{3}\)=\(2\sqrt{3}\)3-12\(2\sqrt{3}\)=24\sqrt{3}-24\sqrt{3}=0).
Exam Tip
अलग आगतों की समान छवि फलन को एकैकी नहीं रहने देती। / Equal images for different inputs stop the function from being one-one.
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