You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser.
-
B
can someone please show me how to do this problem? thanks!
if cosx=-3/5 in QIII and using -5/13 in QIII find
a) cos2x
b) cos(x+y)cos(x-y)
-
B
i cant seem to finish this homework assignment :(. i really need help? can someone help me? Thanks so much!
prove:
1+sec(-x)/sin(-x)+tan(-x)=cscx
