Answer
$sin(\pi) = 0$
$cos(\pi) = -1$
$tan(\pi) = 0$
$csc(\pi) = undefined$
$sec(\pi) = -1$
$cot(\pi) = undefined$
Work Step by Step
1. Find a Reference Number.
$t^- = \pi - \pi = 0$
2. See Table 1 (Page 410), it contains all the values for the trigonometric functions when $t = 0$.
$sin(0) = 0$
$cos(0) = 1$
$tan(0) = 0$
$csc(0) = undefined$
$sec(0) = 1$
$cot(0) = undefined$
3. Since $\pi$ is in Quadrant II, cos($\pi$) and sec($\pi$) are negative.
$sin(\pi) = 0$
$cos(\pi) = -1$
$tan(\pi) = 0$
$csc(\pi) = undefined$
$sec(\pi) = -1$
$cot(\pi) = undefined$