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  4. If x > 0, xxxx.... = 2 and y = √x+√x+√x+...., then the value of 2y - 2 is

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Q. If $x > 0, x^{x^{x^{x....}}} = 2 $ and $y = \sqrt{x+\sqrt{x+\sqrt{x+....,}}}$ then the value of $2y - 2$ is

COMEDKCOMEDK 2007Complex Numbers and Quadratic Equations

Solution:

Correct answer is (d) None of these