SOLUTION: Find sin 2x, cos 2x, and tan 2x from the given information. tan x = − 12/5 , x in Quadrant II

Algebra ->  Trigonometry-basics -> SOLUTION: Find sin 2x, cos 2x, and tan 2x from the given information. tan x = − 12/5 , x in Quadrant II       Log On


   

Question 914948: Find sin 2x, cos 2x, and tan 2x from the given information.
tan x = − 12/5
, x in Quadrant II
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
x in Quadrant II
tan x = -12/5, then sin x = 12/13 and cos x = -5/13
Plug and Play
sin 2x = 2sin x cos x = 2%2812%2F13%29%28-5%2F13%29
cos 2x = cos%5E2%28x%29+-+sin%5E2%28x%29
tan 2x = %282tan%28x%29%29%2F%281-tan%5E2%28x%29%29