Solve (22/7)(i^2)(20)

$$( \frac { 22 } { 7 } ) ( i ^ { 2 } ) ( 20 )$$

Evaluate

$$-\frac{440}{7}\approx -62.857142857$$

Solution Steps

Calculate i to the power of 2 and get -1.

$$\frac{22}{7}\left(-1\right)\times 20$$

Multiply \frac{22}{7} and -1 to get -\frac{22}{7}.

$$-\frac{22}{7}\times 20$$

Multiply -\frac{22}{7} and 20 to get -\frac{440}{7}.

$$-\frac{440}{7}$$

Real Part

$$-\frac{440}{7} = -62\frac{6}{7} = -62.857142857142854$$

Solution Steps

Calculate i to the power of 2 and get -1.

$$Re(\frac{22}{7}\left(-1\right)\times 20)$$

Multiply \frac{22}{7} and -1 to get -\frac{22}{7}.

$$Re(-\frac{22}{7}\times 20)$$

Multiply -\frac{22}{7} and 20 to get -\frac{440}{7}.

$$Re(-\frac{440}{7})$$

The real part of -\frac{440}{7} is -\frac{440}{7}.

$$-\frac{440}{7}$$