Find all solutions for the following equation in the interval
0 ≤ x <2pi
3cos(3x)=6
i got cos3x=2, don't know how to go further i think it would be no solution but just want to confirm.
5 answers
find the exace value of sin(60 degree - 45 degree)
find the exact value of sin(60 degree - 5 degree)
You are right, there is no solution
cos(of any angle) must be between -1 and +1
cos(of any angle) must be between -1 and +1
I don't show either of the anwere you have.
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2 answers