Ask your own question, for FREE!
Mathematics 21 Online
OpenStudy (summersnow8):

Use fundamental identities to find exact values of the remaining trig functions given that sec x=11/9 , tan x < 0?

OpenStudy (aravindg):

sec x=11/9 so both sec x and cos x are positive

OpenStudy (aravindg):

tan x<0 means sin x<0 from above observation

OpenStudy (aravindg):

Hence the angle lies in 4th quadrant

OpenStudy (aravindg):

Now just use the right triangle and find all other trigonometric ratios. Don't forget to put correct sign according to 4th quadrant.

OpenStudy (summersnow8):

I tired doing that, but it wasn't correct. I found cosine x = 9/11, but the others I cant find

OpenStudy (aravindg):

|dw:1372184147001:dw|

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
MakaylaChuck23: Help wats this
2 hours ago 2 Replies 0 Medals
MakaylaChuck23: uh oh
5 hours ago 1 Reply 0 Medals
Treeko: Pics I took w my friend !
7 hours ago 6 Replies 2 Medals
Aliciaa: Is anyone elses QC going wack? Mine keeps freezing and stuff
5 hours ago 26 Replies 1 Medal
autumnp: does anyone have bandlab?
7 hours ago 4 Replies 0 Medals
Jeromeccv: Art for @vanessad123
4 hours ago 49 Replies 4 Medals
ohhhhhhhhhhhhhh: how do i slim my waist fast
7 hours ago 4 Replies 1 Medal
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!