- #1
chwala
Gold Member
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- Homework Statement
- see attached.
- Relevant Equations
- complex numbers
##x^2+y^2-5x=0##
##-y= 2##
I end up with the quadratic equation, ##x^2-5x+4=0##
Finally giving us, ##z=4-2i## and ##z=1-2i##
Which is easy enough to check for yourself.chwala said:Homework Statement:: see attached.
Relevant Equations:: complex numbers
Finally giving us s, ##z=4-2i## and ##z=1-2i##
Then you should ask for a different approach, which you haven't gotten from us yet. This wasn't clear in your original post.chwala said:Thanks Mark...I am seeking for a different way of solving this apart from simultaneous approach that I used...that's why I posted the question...yes, I can check that mate.
What you did was the most obvious and simplest approach. If there is another way, I can't think what it might be.chwala said:Thanks Mark...I am seeking for a different way of solving this apart from simultaneous approach that I used...that's why I posted the question...yes, I can check that mate.
A complex number is a number that contains both a real part and an imaginary part. It is written in the form a + bi, where a and b are real numbers and i is the imaginary unit (i.e. √-1).
To find the real part of a complex number, simply take the number without the imaginary unit. To find the imaginary part, take the coefficient of the imaginary unit (i.e. the number in front of the i).
The standard form of a complex number is a + bi, where a and b are real numbers and i is the imaginary unit. This form is used to easily identify the real and imaginary parts of a complex number.
To solve for z in a complex number problem, you can use the quadratic formula or factor the equation. Once you have found the solutions, you can plug them into the standard form a + bi to get the complex number.
In a complex number problem, there are typically two possible values of z. This is because the quadratic formula produces two solutions, one for the positive square root and one for the negative square root.