What is 8i equal to?

What about the 8i²? Remember we introduced i as an abbreviation for √–1, the square root of –1. In other words, i is something whose square is –1. Thus, 8i² equals –8.

What is the real part of 8i?

Since 8i don't have any real part.

What does 2i equal to?

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.

Is 6i a real number?

Examples: 3+6i (3 is the real part, 6i is the imaginary part)

What is 5i equal to?

For example, 5i is an imaginary number, and its square is −25. By definition, zero is considered to be both real and imaginary.

Simplify -6i(8-6i)(-8-8i)

What does 4i mean in math?

a is called the real part of the complex number and bi is called the imaginary part of the complex number. In the complex number 6 - 4i, for example, the real part is 6 and the imaginary part is -4i.

What is 3i algebra?

Since −3i is an imaginary number, it is the imaginary part (bi) of the complex number a + bi. This imaginary number has no real parts, so the value of a is 0…. Imaginary Numbers.

What kind of number is 2i?

All real numbers are complex numbers with zero for the imaginary part. 0 + 2i is just the imaginary number 2i. All imaginary numbers are complex numbers with zero for the real part.

What is 4i in complex numbers?

Answer: 4i=4 cis (pi/2).

What is this pi?

Succinctly, pi—which is written as the Greek letter for p, or π—is the ratio of the circumference of any circle to the diameter of that circle. Regardless of the circle's size, this ratio will always equal pi. In decimal form, the value of pi is approximately 3.14.

What is 5i in Matrix?

A complex number is of the form z = x + iy, where x is the real part of z and y is the imaginary part of z. If x = 0, the z is called a purely imaginary number and when y = 0, z is called the purely real number. In the same way can write 5i and is equal to 0 + 5i. Therefore, 5i = 0 + 5i. The modulus of 5i = √5² = 5.

What is root 5i?

The square root of 5 is expressed as √5 in the radical form and as (5)^½ or (5)^0.5 in the exponent form. The square root of 5 rounded up to 5 decimal places is 2.23607. It is the positive solution of the equation x² = 5.

What do i mean in math?

The imaginary unit or unit imaginary number (i) is a solution to the quadratic equation x² + 1 = 0. Although there is no real number with this property, i can be used to extend the real numbers to what are called complex numbers, using addition and multiplication.

What is the absolute value of 6 3i?

The point representing 6 - 3i would be six steps along the positive real axis and 3 steps along the imaginary negative axis, as shown. The point's absolute value is its distance from the origin, which is simply the hypotenuse of a right triangle with legs of lengths 3 and 6, respectively.

What is the absolute value of 6 5i?

The given complex number is 6-5i. Evaluate the value of | 6 − 5 i | as follows. Therefore, the absolute value of | 6 − 5 i | is 7.81.

What is the absolute value of the complex number − 4 − √ 2i?

Summary: The absolute value of the complex number -4 - √2i is √18.