Let theta be an angle in standard position with point ( x, y) on its terminal side. Write the values of the six trigonometric functions of theta for the following values of x, y, and r.
x = 0, y = -2, r = 2

sec theta = ?

Question

Let theta be an angle in standard position with point ( x, y) on its terminal side. Write the values of the six trigonometric functions of theta for the following values of x, y, and r. 
x = 0, y = -2, r = 2 

sec theta = ?

anonymous · Answer

secant is the reciprocal of cosine
cosine is the first coordinate
however, zero has no reciprocal, because you cannot divide by zero

anonymous · Answer

actually in your case $\cos(x)=\frac{0}{2}=0$ and $\sin(x)=\frac{-2}{2}=-1$ but you still cannot divide by 0

unklerhaukus · Answer

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