MCQ
નીચેનામાંથી ક્યુ સાચુ છે ?
- A$\sqrt {{x^2}} = \,\left| x \right|$
- B${x^{x + 1}}\, = \,x.{x^x}$
- C$\frac{{\left| x \right|}}{x} = \left\{ \begin{array}{l} 1:x > 0\\ - 1:x < 0 \end{array} \right.$
- ✓બધા જ
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