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यदि `f(x_(1))=f(x_(2))rArrx_(1)=x_(2) AA x_(1),x_(2) in A, `तो `f: A rarr B` कैसा फलन होगा ?A. एक-एक (एकैक)B. अचरC. आच्छादकD. अनेक-एक (अनेकैक) |
| Answer» Correct Answer - A | |