Question
prove identity cscx-(cosx)(cotx)=sinx
Answers
Reiny
LS = 1/sinx - cosx(cosx/sinx)
= (1 - cos^2x)/sinx
= sin^2x/sinx
= sinx
= RS
= (1 - cos^2x)/sinx
= sin^2x/sinx
= sinx
= RS