फलन \( f: R \rightarrow R \) इस प्रकार परिभाषित है कि \( f(x)=4 x-1 \), \( x \in R \), सिद्ध कीज...

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फलन \( f: R \rightarrow R \) इस प्रकार परिभाषित है कि \( f(x)=4 x-1 \), \( x \in R \), सिद्ध कीजिए कि \( f \) एकेकी फलन है।
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