Question

sin inverse x+sin inverse y=(5*pi)/6,then find value of cos inverse x+cos inverse y

Answer 1

Answer:

sin inverse x+sin inverse y=5π/6

=π/2- cos inverse x+π/2-cos inverse y=5π/6

{since,sin inverse x +cos inverse x=π/2}

=π-(cos inverse x+cos inverse y)=5π/6

so, cos inverse x +cos inverse y=π-5π/6=π/6