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solving system of equations produce complex numbers 2
Not a Problem
2nd try
Why does this system of equations give complex roots for solution?
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maybe because of the entry mode (use of cos and sin)
try u = cos(a), v = sin(a)
and linearise cos(2a) and sin(2a) before using ratkaise
but it's better to solve with just a pen because this is just two lines
This seems OK:
Also simplifying the answer is fine:
Sorry, there's no other improvement we can make with this
I can undertand that this can very easily be solved without a computer. My question was why. Does this mean that if I have equations with constansts cos(2a), sin(2a) and a, there is a possibility that I get complex roots?
Thanks Mike telling about the Simplify and trigexpand
M
Sorry, yes
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