MCQ
સમીકરણ $x = \sqrt {2 + \sqrt {2 + \sqrt {2 + .....} } } $ નો ઉકેલ.....છે.
- A$-1$
- B$1$
- C$2$
- D$3$
$ \Rightarrow \,\,(x - 2)(x + 1) = 0$
$ \Rightarrow \,\,x = 2, - 1$ પરંતુ $\sqrt {2 + \sqrt {2 + .....} } \ne - 1,$ માટે ${\rm{ = 2}}$.
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