How do you find the value of Csc(-8pi/6)?

1 Answer
Oct 24, 2015

Find the value of csc(8π6)

Ans: 233

Explanation:

csc(8π6)=csc(4π3)=1sin(4π3).
First, find sin(4π3)
sin(4π3)=sin(2π3)=32 (co-terminal arcs).

csc(4π3)=1sin=23=233

Check by calculator.
sin(4π3)=sin(240)=0.87
sin(4π3)=32=1.732=0.87. OK