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Mathematics, 18.09.2021 14:00 nane718

How can i solve it (i need an explanation please) ​


How can i solve it (i need an explanation please) ​

Answers

ansver
Answer from: 0465834wu1

The answer is d

\frac{ \sqrt{2} }{2}

Step-by-step explanation:

\sqrt{ \frac{1}{2} }  +  \sqrt{ \frac{1}{2} }  \\  =  \sqrt{ \frac{2}{4} }

The reason it is like √2/4 is because 1/2 and 1/2 are the same so you just add them

To complete it we know that 4 is a perfect square

and it can be divided by 2

\sqrt{ \frac{2}{4} }  \\  =  \frac{ \sqrt{2} }{2}

The reason why the two is left like that is because is not a perfect square

Hope this helps

ansver
Answer from: bri9263

C

Step-by-step explanation:

\frac{1}{\sqrt{2} } + \frac{1}{\sqrt{2} }

= \frac{2}{\sqrt{2} } ( multiply numerator/ denominator by \sqrt{2} to rationalise the denominator )

= \frac{2(\sqrt{2}) }{\sqrt{2}(\sqrt{2})  }

= \frac{2\sqrt{2} }{2}

= \sqrt{2} → C

ansver
Answer from: Quest

can you me with homework?

step-by-step explanation:

ansver
Answer from: Quest
1603 is the correct one.

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