If \(y = \sqrt {x + \sqrt {x + \sqrt {x + ... \infty } } } \), then \(\frac{{dy}}{{dx}}\) is

If \(y = \sqrt {x + \sqrt {x + \sqrt {x + ... \infty } } } \), then

1.	If \(y = \sqrt {x + \sqrt {x + \sqrt {x + ... \infty } } } \), then \(\frac{{dy}}{{dx}}\) is
A.	1
B.	\(\frac{1}{{xy}}\)
C.	\(\frac{1}{{2y - x}}\)
D.	\(\frac{1}{{2y - 1}}\)
Answer» E.

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If \(y = \sqrt {x + \sqrt {x + \sqrt {x + ... \infty } } } \), then \(\frac{{dy}}{{dx}}\) is

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