Can anyone help with pre- alerba

Mathematics

1 answer:

faust18 [17]3 years ago

7 0

Answer:

$\sqrt{x^2} = |x|$

Step-by-step explanation:

$\sqrt{x^2} = |x|$

The radical symbol when used for a square root means the non-negative square root. You cannot state that sqrt(x^2) = x because x may be negative. That is why you need use the absolute value symbol.

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$f(x)= \left \{ {{ \sqrt{x} } \atop {2x-1}} \right. 
\\
\\ f'(x)= \left \{ {{ \frac{1}{2\sqrt{x}} } \atop {2}} \right. 
\\
\\ f'(1)= \left \{ {{ \frac{1}{2}} \atop {2}} \right. 
\\
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\\
\\f'(x)= \frac{1}{2 \sqrt{x} } 
\\
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Step-by-step explanation:

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4 years ago

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Illusion [34]

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answer
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