Evaluate
20-3i
Real Part
20
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15+5+\left(2-5\right)i
Combine the real and imaginary parts in numbers 15+2i and 5-5i.
20-3i
Add 15 to 5. Add 2 to -5.
Re(15+5+\left(2-5\right)i)
Combine the real and imaginary parts in numbers 15+2i and 5-5i.
Re(20-3i)
Add 15 to 5. Add 2 to -5.
20
The real part of 20-3i is 20.
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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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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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