Enrhifo (complex solution)
\sqrt{5}i\approx 2.236067977i
Enrhifo
\text{Indeterminate}
Rhan Real (complex solution)
0
Rhannu
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\sqrt{-5}
Tynnu 30 o 25 i gael -5.
\sqrt{5}i
Ffactora -5=5\left(-1\right). Ailysgrifennu ail isradd y lluoswm \sqrt{5\left(-1\right)} fel lluoswm ail israddau \sqrt{5}\sqrt{-1}. Drwy ddiffiniad, ail isradd -1 yw i.
\sqrt{-5}
Tynnu 30 o 25 i gael -5.
Enghreifftiau
Hafaliad cwadratig
{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Gwahaniaethu
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integreiddiad
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
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