problem: give the exact value of sec(pi/3).

so i understand that sec=1/cos, but every time i try to solve it i get it wrong. can someone explain?

Question

problem: give the exact value of sec(pi/3).

so i understand that sec=1/cos, but every time i try to solve it i get it wrong. can someone explain?

***[isuru]*** · Answer

hey... ur point seems confusing but...

 cos (pi/3) = 1/2
and hence
 sec (pi/3) = 1/cos(pi/3)
                = 1/ (1/2)
                = 2

i don't know whether this is the help u seek out.. but if u could explain ur situation a bit more it would be helpful.. :)

anonymous · Answer

for some reason, every time i type cos(pi/3) into my calculator is comes out as .9976035, but i think i was just typing it in wrong. thanks for the help!

***[isuru]*** · Answer

u r welcome :)