If sin theta = -4/5 and theta is in quadrant 4, the value of sec theta is _____. If necessary, use the slash mark ( / ) for a fraction bar.
Lost.. don't know how to even start this problem

Question

If sin theta = -4/5 and theta is in quadrant 4, the value of sec theta is _____. If necessary, use the slash mark ( / ) for a fraction bar.
Lost.. don't know how to even start this problem

anonymous · Answer

think of a 3 - 4 - 5 right triangle

anonymous · Answer

|dw:1359685111992:dw|

anonymous · Answer

the sine of that angle is $\frac{4}{5}$ and the secant of that angle is $\frac{5}{3}$ now we can worry about if it is positive or negative

anonymous · Answer

since you are in quadrant 4, cosine is positive and so secant is positive

anonymous · Answer

so it would be 5/3 ? because thats the sec. and then postive

anonymous · Answer

yes

anonymous · Answer

Thank you! :)