What do you not understand? Because I can't see any mistake ...
Calculate the discriminant and afterwars do the back-substitution.
This is my problem:
(image looks funky on here so url provided)
My line of thinking is shown but the result makes no sense to me. My result just does not seem correct. Can someone show me my error?
Would this be correct then?
Now, after you solved your quadratic equation you got two roots.
One root is , and the second root is .
Now you wrote:
, tell me how it is possible?!
That is wrong!
What you can write is the following:
If we return back to origins, we get:
It is impossible!
So we left only with:
So, why you took the from both sides?
gah, don't know why I used arcsin all of a sudden.
let me rewrite this:
I dont know how to do the little +/- in LaTeX so I just split them with division symbol.
The answer is looking for all values between 0-360 degrees. I just didn't type all that out.
I didn't mean to put 0= 1/2(-1+/-sqrt). should be x. I just didn't put an x in the next line.