Solve {l}{2(1-i)}{-1}

$$\left. \begin{array} { l } { 2 ( 1 - i ) } \\ { - 1 } \end{array} \right.$$

Evaluate

$$1-2i$$

Solution Steps

Multiply 2 times 1-i.

$$2\times 1+2\left(-i\right)-1$$

Do the multiplications in 2\times 1+2\left(-i\right).

$$2-2i-1$$

Combine the real and imaginary parts.

$$2-1-2i$$

Add 2 to -1.

$$1-2i$$

Real Part

$$1$$

Solution Steps

Multiply 2 times 1-i.

$$Re(2\times 1+2\left(-i\right)-1)$$

Do the multiplications in 2\times 1+2\left(-i\right).

$$Re(2-2i-1)$$

Combine the real and imaginary parts in 2-2i-1.

$$Re(2-1-2i)$$

Add 2 to -1.

$$Re(1-2i)$$

The real part of 1-2i is 1.

$$1$$