SOLUTION: If cos &#920; = &#8730;2/2 and 3pi/2 < &#920; < 2&#960;, what are the values of sin &#920; and tan &#920;? Please help, thank you.

Algebra ->  Trigonometry-basics -> SOLUTION: If cos &#920; = &#8730;2/2 and 3pi/2 < &#920; < 2&#960;, what are the values of sin &#920; and tan &#920;? Please help, thank you.       Log On


   

Question 878639: If cos Θ = √2/2 and 3pi/2 < Θ < 2π, what are the values of sin Θ and tan Θ?
Please help, thank you.

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

cos Θ = √2/2 and "3pi/2 < Θ < 2π"

Θ = 315

sin Θ  = -√2/2 and tan Θ = sin/cos = -1

(cosx, sinx) Unit Circle summary for Your Reference