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Q.1 2. વિધેય $f: \text{A} \rightarrow \text{B}$ માટેના વિસ્તાર માટે નીચેના વિધાનોપૈકી કયું વિધાન સાચું છે.

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Q.2 1. નીચે આપેલ વિધાનો પૈકી ક્યાં વિધાનો સાચાં છે ?

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Q.3 5. $f : \text{A} \rightarrow \text{B}$ માટે ગણ $\text{A}$ ની પ્રત્યેક કિંમત માટે ગણ $\text{B}$ માં ફક્ત એક જ પ્રતિબિંબ મળતું હોય તો કવા પ્રકારનું વિધેય કહેવાય ?

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Q.4 7. $f : \text{Z} - \{0\} \rightarrow \text{N}$ અને $f(x) = x^2, x \in \text{Z} - \{0\}$ એ કયા પ્રકારનું વિધેય છે ?

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Q.5 4. $f : \text{A} \rightarrow \text{B}$ માટે પ્રદેશ ગણ $\text{A}$ માંની કોઈ બે ભિન્ન કિંમતો માટે વિધેયાત્મક કિંમત સમાન મળે તો તે સંબંધને શું કહેવાય ?

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Q.6 8. બે ભિન્ન વિધેયો સમાન થાય તે માટે નીચેના પૈકી કઈ શરત પર્યાપ્ત છે ?

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Q.7 6. એક-એક વિધેય માટે નીચેના પૈકી કયું વિધાન સાચું છે ?

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Q.8 3. $g : \text{X} \rightarrow \text{Y}, \text{X} = \{-1, 0\}, \text{Y} = \{2, 4\}, g(x) = 4 - 2x$. આ પરથી જણાવો કે નીચેના પૈકી કયું વિધાન સાચું છે.