Evaluate
15+3i
Real Part
15
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5\times 3+3i
Multiply 5+i times 3.
15+3i
Do the multiplications.
Re(5\times 3+3i)
Multiply 5+i times 3.
Re(15+3i)
Do the multiplications in 5\times 3+3i.
15
The real part of 15+3i is 15.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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