SOLUTION: using compound angle formula find , a) sec 165 plz help am confuse. thx lots in adv

Algebra ->  Trigonometry-basics -> SOLUTION: using compound angle formula find , a) sec 165 plz help am confuse. thx lots in adv      Log On


   

Question 1119264: using compound angle formula find ,
a) sec 165
plz help am confuse.
thx lots in adv
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
sec%28165%29=1%2Fcos%28165%29

1%2Fcos%28120%2B45%29

1%2F%28cos%28120%29cos%2845%29-sin%28120%29sin%2845%29%29---------continue from here. Quadrant 2.