MCQ
જો $A = \{ 1,\,2,\,3,\,4\} $; $B = \{ a,\,b\} $ અને $f:A \to B$, તો $A \times B$ મેળવો.
- A$\{(a, 1), (3, b)\}$
- B$\{(a, 2), (4, b)\}$
- ✓$\{(1, a), (1, b), (2, a), (2, b), (3, a), (3, b), (4, a), (4, b)\}$
- Dએકપણ નહી.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
કારણ ${\rm{(R)}}$ બિંદુઓ ${\rm{ (}}{{\rm{x}}_{\rm{1}}}{\rm{, }}{{\rm{y}}_{\rm{1}}}{\rm{)}}$ એઅતિવલય ${\rm{ }}\,\,\frac{{{x^2}}}{{{a^2}}}\, - \,\,\frac{{{y^2}}}{{{b^2}}}\, = \,\,1$ ની અંદર આવેલું , તો $\frac{{x_{^1}^2}}{{{a^2}}}\, - \,\,\frac{{y_1^2}}{{{b^2}}}\, - \,\,1\,\, < \,\,0$