if cos theta=-5/13 and theta is greater than or equal to 0 and less then or equal to 2pi, determine
a) Tan theta
b) sec theta

Question

if cos theta=-5/13 and theta is greater than or equal to 0 and less then or equal to 2pi, determine
a) Tan theta
b) sec theta

anonymous · Answer

$$\cos \theta=\frac{ -5 }{ 13 }, 0\le \theta \le2\pi$$ find:
$$a)\tan \theta$$
$$b)\sec\theta$$

anonymous · Answer

What I think it should be for tan theta|dw:1416949399066:dw| tan theta= 12/-5?

anonymous · Answer

Sec is just 1/ Cos so Sec theta = 13/-5

anonymous · Answer

is my answer correct for tan theta cuz the book got a different answer

anonymous · Answer

Tan = sin / cos

Since the sin is Opposite/Hypotenuse Sin = 12/13
Cos is Adjacent/Hypotenuse so it is -5/13

12/13 * 13/-5 = -12/5 = 12/-5 so yes you did get the correct answer for tan theta

anonymous · Answer

the book says its 12/13

anonymous · Answer

for tan theta

anonymous · Answer

oh well i guess they messed up.

anonymous · Answer

Yeah I think they meant to say that Sin theta = 12/13