Question

if x is equal to 3 + 2 root 2 find the value of root x minus one upon root x

Answer 1

howdy !!

your answer is -
Given ,
$x = 3 + 2 \sqrt{2}$
so ,
$\sqrt{x} = \sqrt{3 + 2 \sqrt{2} } \\ = \sqrt{ {(3 + \sqrt{2} }^{2} } \\ = 3 + \sqrt{2}$

now,
$\frac{1}{ \sqrt{x} } = \frac{1}{3 + \sqrt{2} } = 3 - \sqrt{2}$

therefore ,
$\sqrt{x} - \frac{1}{ \sqrt{x} } \\ = 3 + \sqrt{2} - (3 - \sqrt{2}) \\ = 3 + \sqrt{2} - 3 + \sqrt{2} \\ = 2 \sqrt{2}$

answer is
$2 \sqrt{2}$

hope it help you

Answer 2

Answer:

answer is 2√2

Step-by-step explanation:

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