# How do you conjugate 4 5i?

## How do you conjugate 4 5i?

To find a complex conjugate, simply change the sign of the imaginary part (the part with the i ). This means that it either goes from positive to negative or from negative to positive. As a general rule, the complex conjugate of a+bi is a−bi . Therefore, the complex conjugate of −4+5i is −4−5i .

**How do you convert polar form to rectangular form?**

To change a rectangular equation to a polar equation just replace x with r cos θ and y with r sin θ .

### What is the conjugate of 5 5i?

Hence, the conjugate of complex numbers $ – 5 – 5i$ is $ – 5 + 5i$. So, the correct answer is “$ – 5 + 5i$”.

**How do you find the conjugate?**

You find the complex conjugate simply by changing the sign of the imaginary part of the complex number. To find the complex conjugate of 4+7i we change the sign of the imaginary part. Thus the complex conjugate of 4+7i is 4 – 7i. To find the complex conjugate of 1-3i we change the sign of the imaginary part.

#### How do you convert from polar coordinates to rectangular coordinates?

To convert from Cartesian Coordinates (x,y) to Polar Coordinates (r,θ):

- r = √ ( x2 + y2 )
- θ = tan-1 ( y / x )

**How do you find the conjugate of a function?**

The conjugate of a two-term expression is just the same expression with subtraction switched to addition or vice versa. The product of conjugates is always the square of the first thing minus the square of the second thing. Cancel the (x – 4) from the numerator and denominator. Now substitution works.

## Is there a calculator that converts polar numbers to rectangular numbers?

Below is an interactive calculator that allows you to easily convert complex numbers in polar form to rectangular form, and vice-versa. There’s also a graph which shows you the meaning of what you’ve found. For background information on what’s going on, and more explanation, see the previous pages,

**How can I change the precision of my Polar calculator?**

You can change the precision of all the calculations by changing the “Decimal places” option. Go back to the examples on the Polar Form page and try them here in the calculator, and compare the results.

### How do you change the radius of a circle in polar?

You can also drag point P to change the radius of the circle, and/or the angle to your desired values. You can zoom the graph in or out using the navigation icons at the bottom of the graph, and pan left-right, up-down by holding down the key while dragging the graph.

**How to calculate conj ( 4 + 5 I ) complex number?**

Complex number: 4+5 i conj – Complex conjugate: conj (the result of step No. 1) = conj (4+5 i) = 4-5i This calculator does basic arithmetic on complex numbers and evaluates expressions in the set of complex numbers. As imaginary unit use i or j (in electrical engineering), which satisfies basic equation i2 = −1 or j2 = −1.