# Is complex

Are these numbers 2i, 4i, 2i + 1, 8i, 2i + 3, 4 + 7i, 8i, 8i + 4, 5i, 6i, 3i complex?

**Result****Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):**

**Showing 0 comments:**

**Be the first to comment!**

#### To solve this example are needed these knowledge from mathematics:

## Next similar examples:

- De Moivre's formula

There are two distinct complex numbers z such that z^{3}is equal to 1 and z is not equal 1. Calculate the sum of these two numbers. - Imaginary numbers

Find two imaginary numbers whose sum is a real number. How are the two imaginary numbers related? What is its sum? - Complex number coordinates

Which coordinates show the location of -2+3i - Reciprocal

Calculate reciprocal of z=0.8+0.6i: - Linear imaginary equation

Given that ? "this is z star" Find the value of the complex number z. - Im>0?

Is -10i a positive number? - ABS CN

Calculate the absolute value of complex number -15-29i. - Sequence

Between numbers 1 and 53 insert n members of the arithmetic sequence that its sum is 702. - Theorem prove

We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started? - Trinity

How many different triads can be selected from the group 38 students? - Calculation of CN

Calculate: ? - Equation

Equation ? has one root x_{1}= 8. Determine the coefficient b and the second root x_{2}. - 75th percentile (quartille Q3)

Find 75th percentile for 30,42,42,46,46,46,50,50,54 - Seats

Seats in the sport hall are organized so that each subsequent row has five more seats. First has 10 seats. How many seats are: a) in the eighth row b) in the eighteenth row - Six terms

Find the first six terms of the sequence a1 = -3, an = 2 * an-1 - Discriminant

Determine the discriminant of the equation: ? - Quadratic equation

Find the roots of the quadratic equation: 3x^{2}-4x + (-4) = 0.