There are many approaches, but recognising that tan(x) = sin(x)/cos(x) is probably essential. As a first step, you might like to show one side is equal to (1 - cos(x))/sin(x) and continue from there. Show us your work, Lisa.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
