1.

फलन f निम्न प्रकार परिभाषित है - `{:{(1",",x gt 0),(0",",x=0),(-1",",x lt 0):}` f का परिसर है -A. {1,0}B. {0,-1}C. {1,-1}D. {1,0,-1}

Answer» Correct Answer - D


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