Question
$x = \sqrt {2 + \sqrt {2 + \sqrt {2 + .....} } } $का मान है
$⇒$ $(x - 2)(x + 1) = 0$$⇒$ $x = 2, - 1$
लेकिन $\sqrt {2 + \sqrt {2 + .....} } \ne - 1$, अत: $x = 2$.
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