Evaluate
-1+12i
Real Part
-1
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7-8+\left(3+9\right)i
Combine the real and imaginary parts in numbers 7+3i and -8+9i.
-1+12i
Add 7 to -8. Add 3 to 9.
Re(7-8+\left(3+9\right)i)
Combine the real and imaginary parts in numbers 7+3i and -8+9i.
Re(-1+12i)
Add 7 to -8. Add 3 to 9.
-1
The real part of -1+12i is -1.
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y = 3x + 4
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Matrix
\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]
Simultaneous equation
\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 ) }
Integration
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Limits
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