Formula

Calculate the value

Answer

$\sqrt{ -4 }$

$2 i$

Calculate the value

$\sqrt{ \color{#FF6800}{ - } \color{#FF6800}{ 4 } }$

$ $ Organize the part that can be taken out of the radical sign inside the square root symbol $ $

$\color{#FF6800}{ 2 } \sqrt{ \color{#FF6800}{ - } \color{#FF6800}{ 1 } }$

$2 \sqrt{ \color{#FF6800}{ - } \color{#FF6800}{ 1 } }$

$ $ It is $ \sqrt{-1} = i$

$2 \color{#FF6800}{ i }$

Solution search results

The rationalizing factor of \sqrt{23} is
$°$ $Options^{°}$ $0$
A 24
23
C \sqrt{23}
D None of these

7th-9th grade

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