Question

Given `tantheta` is undefined, `sintheta>0` to find the remaining trigonometric function?

Answer 1

On the trig unit circle,
When `t = pi/2` --> sin t = 1 and cos t = 0
`tan t = sin t/(cos t) = 1/0 =` undefined
`cot t = cot (pi/2) = 0`
`sec t = 1/(cos t) =` undefined
`csc t = 1/(sin) = 1/1 = 1`