By the way, it's not "pie" . . . it's "pi".
An inverse trig function has an infinite number of values.Solve: .
My solution is first: . . ?? . Why?
Now find so that the angle falls within the interval.
oh thanks yeah sorry ''PI'' . 1.28/pi to get the result is PI ? coz its in Radian .
anway how to find n ? I need an exemple how to resolve this problem .
our teacher is drawing the circle and i m lost sometimes she adjust -Pi -x , +Pi + x Please can you help me how to know ?