Question

$\sqrt{3 - 2 \sqrt{2} }$
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Answer 1

$\bf\large\underline\blue{Question:-}$

• Evaluate $\sqrt{3 - 2 \sqrt{2} }$

$\bf\large\underline\blue{Solution:-}$

• Before we start, we have to know the identity to be used while solving this problem.
• Only one identity is needed for solving this. Here is the identity $\downarrow$
• ${(x - y)}^{2} = {x}^{2} + {y}^{2} - 2xy$

Now, we will solve the problem,

$\sqrt{3 - 2 \sqrt{2} }$

Can be written as,

$\sqrt{2 + 1 - 2 \sqrt{2} }$

$= \sqrt{( \sqrt{2})^{2} + {( \sqrt{1} )}^{2} - 2 \times \sqrt{1} \times \sqrt{2} }$

$= \sqrt{ {( \sqrt{2} - 1) }^{2} }$

$= \pm ( \sqrt{2} - 1)$

Hence, the required answer is$\pm ( \sqrt{2} - 1)$

$\bf\large\underline\blue{Answer:-}$

• Answer is $\pm( \sqrt{2} - 1)$

Answer 2

Answer:

Galileo di Vincenzo Bonaiuti de' Galilei was an Italian astronomer, physicist and engineer, sometimes described as a polymath, from Pisa. Galileo has been called the "father of observational astronomy", the "father of modern physics", the "father of the scientific method", and the "father of modern science". 

Step-by-step explanation:

Galileo di Vincenzo Bonaiuti de' Galilei was an Italian astronomer, physicist and engineer, sometimes described as a polymath, from Pisa. Galileo has been called the "father of observational astronomy", the "father of modern physics", the "father of the scientific method", and the "father of modern science". 

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