## anonymous 3 years ago Pls help Urgent help needed

1. anonymous

2. anonymous

240

3. anonymous

and 120

4. anonymous

60 is not the answer because in the first quadrant, all trigonometric functions yield positive values.... Only in the 2nd and 3rd quadrant does cosine function yield negative values..

5. anonymous

6. anonymous

4pi/6 and 8pi/6

7. thesecret20111

How you get a degree into radian for is to multiply the degree by $\pi \div180$

8. thesecret20111

So 60 degrees in radians would be $60*\frac{ \pi }{ 180 }$

9. anonymous

10. thesecret20111

No problem :)

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