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January 31, 2015

January 31, 2015

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°

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