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March 31, 2015

March 31, 2015

Posted by **-Untamed-** on Monday, October 24, 2011 at 10:36pm.

- Calculus -
**Reiny**, Monday, October 24, 2011 at 10:43pmso you want sinØ = -1/2

Then angle must be in quadrants III or IV

then angle in standard position is 30° (because sin30° = +1/2)

so our angle is 180+30 = 210° in III

or our angle is 360-30 = 330 ° in IV

check by taking sin 210 and sin 330

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