Solve tan3x=-1?

1 ⤊

2007-11-11 15:20:52 · 5 answers · asked by Jim H 1 in Science & Mathematics ➔ Mathematics

tanx = -1/3

so basically you can use ur calculator now to find the angle (arctanx) = -1/3

2007-11-11 15:28:02 · answer #1 · answered by Anonymous · 0⤊ 0⤋

tan3x = - 1
3x = - 45Â°, 135Â°
x = - 15Â°, 45Â° (both Â± n(360Â°))

2007-11-11 15:35:43 · answer #2 · answered by Helmut 7 · 0⤊ 1⤋

-2

2007-11-11 15:26:54 · answer #3 · answered by Anonymous · 0⤊ 1⤋

tan(3x) = -1

3x = 3pi/4 or 7pi/4 , pi/4(8n+3), pi/4(8n + 7)

x = pi/4 , 7pi/12 , pi/12(8n+3) , pi/12(8n+7)

n is any positive whole number

2007-11-11 15:41:23 · answer #4 · answered by mohanrao d 7 · 1⤊ 0⤋

x=0.2618....

2007-11-11 17:19:37 · answer #5 · answered by Kenneth Koh 5 · 0⤊ 1⤋