Math, asked by Questioner99, 10 months ago

If x = 1 / 3-√5 , Then Find The Value Of √x + 1 / √x.....Pls Send The Solution Process Wise

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Answers

Answered by pal69
31

i hope you will b understand this solution

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Questioner99: thanks a lot brother
sangamsurendras: mark it as brainliest
sangamsurendras: thanks bro
Answered by smithasijotsl
2

Answer:

The value of  \sqrt{x}+\frac{1}{\sqrt{x} } =\frac{3\sqrt{5}- 1 }{2\sqrt{2} }

Step-by-step explanation:

Given,

x = \frac{1}{3 - \sqrt{5} }

To find,

The value of \sqrt{x}+\frac{1}{\sqrt{x} }

Solution:

(\sqrt{x}+\frac{1}{\sqrt{x} })^2 = x+\frac{1}{x} +2x\frac{1}{x}

(\sqrt{x}+\frac{1}{\sqrt{x} })^2 = x+\frac{1}{x} +2 --------------------(1)

x = \frac{1}{3 - \sqrt{5} }X\frac{3+\sqrt{5} }{3+\sqrt{5}}

= \frac{3+\sqrt{5} }{9-5}

= \frac{3+\sqrt{5} }{4}

\frac{1}{x} = \frac{4}{3+\sqrt{5} }  

\frac{1}{x} = \frac{4}{3+\sqrt{5} }X\frac{3-\sqrt{5} }{3-\sqrt{5} }

= \frac{4(3-\sqrt{5})}{9-5}}

= 3-√5

From equation (1) we get,

(\sqrt{x}+\frac{1}{\sqrt{x} })^2 = \frac{3+\sqrt{5} }{4}+3-\sqrt{5}+2

= \frac{3+\sqrt{5}+12 - 4\sqrt{5}+8  }{4}

= \frac{23-3\sqrt{5}}{4}

= \frac{2(23-3\sqrt{5})}{2X4}

= \frac{46 -6\sqrt{5})}{8}

= \frac{45 + 1 - 6\sqrt{5} }{8}

= \frac{(3\sqrt{5})^2 + 1^1 - 2X3\sqrt{5} }{(2\sqrt{2})^2 }

= \frac{(3\sqrt{5})- 1)^2 }{(2\sqrt{2})^2 }

(\sqrt{x}+\frac{1}{\sqrt{x} })^2 =( \frac{3\sqrt{5}- 1 }{2\sqrt{2} })^2

\sqrt{x}+\frac{1}{\sqrt{x} } =\frac{3\sqrt{5}- 1 }{2\sqrt{2} }

The value of \sqrt{x}+\frac{1}{\sqrt{x} } =\frac{3\sqrt{5}- 1 }{2\sqrt{2} }

#SPJ2

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