Friday

November 28, 2014

November 28, 2014

Posted by **Jade** on Sunday, May 20, 2012 at 12:21am.

- Trigonometry -
**Reiny**, Sunday, May 20, 2012 at 12:30am3cos^2 Ø + 2sinØ + 1 = 0

3(1 - sin^2 Ø) + 2sinØ + 1 = 0

3sin^2Ø - 2sinØ -4 = 0

sinØ = (2 ± √28)/6

= 1.215.. which is not admissable

or

sinØ = -.54858...

so Ø is in III or IV

the angle in standard position is 33.27°

so Ø = 213.27° or Ø = 326.73°

**Answer this Question**

**Related Questions**

Trig - Find all values of theta in the interval 0 <= theta < 360 that ...

trig - i nead to find to the nearest degree all values of theta in the interval ...

trig - Find all values of [theta] in the interval 0°<=X<= 360° that ...

algebra/trigonometry - What are the values of theta in the interval 0degrees ...

Pre-Calculus-check answers - If cos theta = 0.8 and 270<theta<360, find ...

Algebra II - Which of the following expressions are not equal to 1? A) sin^2 ...

Calculus - I wanted to confirm that I solved these problems correctly (we had to...

trig - given that 1/2pi<theta<pi and sin theta=1/5, use appropriate ...

trig - What are the values of theta in the interval 0 less than or equal to ...

trigonometry - can you correct the rest for me please? Express each as a ...