Help Please Help Please!!!*****************************?

0 ⤊

Find the exact values for the following.

a) cos 7pie/6.

b) sec(x) = 2/sqrt of 3 for 0<-x<-pie

2007-04-28 07:42:57 · 2 answers · asked by Hamza 1 in Science & Mathematics ➔ Mathematics

a) 0.5

b) 30

2007-04-28 07:48:18 · answer #1 · answered by The Grumpy Dalek 3 · 0⤊ 0⤋

cos(7pi/6)= cos(pi+pi/6)=-1/2sqrt3
1/cos(x) =2/sqrt3
so cos x ) 1/2 sqrt 3 and x = pi/6 in the given interval

2007-04-28 14:52:37 · answer #2 · answered by santmann2002 7 · 0⤊ 0⤋