Use a cofunction to write an expression equal to csc(4ð/11).

Is the answer csc(4ð/11)= 1/sin(4ð/11)

give 2 positive and 2 negative theta that are at terminal with the given quadrilateral 90 degress

Yes, you are correct. The cofunction for the cosecant function (csc) is the reciprocal of the sine function. Therefore, the expression csc(4π/11) can be written as 1/sin(4π/11).