Asked by Liv
                Evaluate please:
a.) arcsin(sin 13pi/16)
b.) arccos(cos[-pi/18])
c.) arcsin(sin pi/18
d.) arcsec(-√2)
e.) arctan(-√3/3)
            
            
        a.) arcsin(sin 13pi/16)
b.) arccos(cos[-pi/18])
c.) arcsin(sin pi/18
d.) arcsec(-√2)
e.) arctan(-√3/3)
Answers
                    Answered by
            Reiny
            
    a) isn't arcsin(sin(?)) the inverse of itself?
so 13π/16
b) and c) same thing, except by definition arcsin( ..) will give you the smallest positive angle
so arccos(cos(-π/18) = π/18
d) arcsec(-√2)
the angle Ø so that secØ = -√2
or cosØ = (-1/√2)
Ø = 135° or 3π/4
e) -π/6
    
so 13π/16
b) and c) same thing, except by definition arcsin( ..) will give you the smallest positive angle
so arccos(cos(-π/18) = π/18
d) arcsec(-√2)
the angle Ø so that secØ = -√2
or cosØ = (-1/√2)
Ø = 135° or 3π/4
e) -π/6
                                                    There are no AI answers yet. The ability to request AI answers is coming soon!
                                            
                Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.