Enrhifo
28\sqrt{2}\approx 39.597979746
Rhannu
Copïo i clipfwrdd
\sqrt{1568}
Lluosi 14 a 112 i gael 1568.
28\sqrt{2}
Ffactora 1568=28^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{28^{2}\times 2} fel lluoswm ail israddau \sqrt{28^{2}}\sqrt{2}. Cymryd isradd 28^{2}.
Enghreifftiau
Hafaliad cwadratig
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y = 3x + 4
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\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}