reciprocal identities

if sin(theta)=4/5, find csc

Well, asin(4/5)=.80, csc(theta)=1/sine(theta)=1 1/4

asin is the same as inverse sine.  :)

if sin=4/5, find csc

Well, sin(4/5)=.80, csc=1/sine=1 1/4

You both need to include angles and inverse notation!