What is 2i?

2i is an imaginary number because it has the form ‘bi’ Remember, ‘i’ is the imaginary unit and is equal to the square root of -1. Even though ‘i’ is NOT a variable, we can multiply it as if it were. So i • i gives us i2. Squaring √ (-1) cancels out the square root, leaving us with just -1.

What is the calculator trick?

Have them multiply their number on a calculator by “9,” then by “12345679.” Notice that there is no “8” in the second sequence of numbers. Make sure they multiply the number they chose by “9”, then by “12345679,” with no “8” in order for the trick to work.

Is Photomath always right?

Are Photomath Answers Accurate? Yes, this app is always accurate as long as it scanned your figures correctly. Photomath is a helpful teaching tool to help the user to solve a specific problem. The app comes with some explanations for solving a mathematical problem until you arrive at the answer.

How much is 2i?

Answer and Explanation: The absolute value of the complex number, 2i, is 2. We can put the complex number, 2i, in the form a + bi by letting a = 0.

What is 4I?

Definition. 4I. Injury/Sickness (police incident code; New Zealand) Copyright 1988-2018 AcronymFinder.com, All rights reserved.

How do you solve complex numbers step by step?

1. Step 1: Multiply the complex numbers in the same manner as polynomials.
2. Step 2: Simplify the expression.
3. Step 3: Write the final answer in standard form.
4. Step 1: Multiply the complex numbers in the same manner as polynomials.
5. Step 2: Simplify the expression.
6. Step 3: Write the final answer in standard form.

How do you find complex numbers on a TI-84?

Using the TI-84 Calculator for Complex Numbers in Circuits…

1. Select Mode.
2. On the 4th line, select DEGREE (to return answers in degrees instead of radians), and on the 8th line, select a+bi (to return answers in rectangular form) or re^(θi) (to return. answers in polar form.)
3. To save your changes, select 2nd – Mode: