Monday

September 15, 2014

September 15, 2014

Posted by **amaa** on Friday, November 30, 2012 at 9:19pm.

tan θ = − sqrt 3/3

- precalculus -
**Reiny**, Friday, November 30, 2012 at 11:05pmtanØ = -√3/3

from the 30-60-90 triangle, you should recognize that tan 30° = 1/√3 = √3/3

or , using your calculator find tan^1 (√3/3) to get 30°

but the tangent is negative in II and Iv

so Ø = 150°

or Ø = 330°

check with your calculator, it is correct

**Answer this Question**

**Related Questions**

precalculus - Find all solutions of the given equation. (Enter your answers as a...

precalculus - Solve the given equation. (Enter your answers as a comma-separated...

precal - Solve the given equation. (Enter your answers as a comma-separated list...

precalculus - Solve the given equation. (Enter your answers as a comma-separated...

precal - Solve the given equation. (Enter your answers as a comma-separated list...

calculus - Solve the given equation. (Enter your answers as a comma-separated ...

precal - Find all solutions of the given equation. (Enter your answers as a ...

precal - Solve the given equation. (Enter your answers as a comma-separated list...

precalculus - Use a Double- or Half-Angle Formula to solve the equation in the ...

trig - Find all angles θ between 0° and 180° satisfying the given equation...