Answer
(a)$sin \space \frac{\pi}{7} \approx 0.43388$
(b)$csc \space \frac{\pi}{7} \approx 2.30476$
Work Step by Step
1. Since $0 \lt \pi/7 \lt \pi/2$, this angle is in Quadrant I.
Thus, we should directly search for its terminal point on table 1 (page 404).
As we can see, the table does not contain this value for that angle, thus we will have to use a calculator.
$sin \space \frac{\pi}{7} \approx 0.43388$
$csc \space \frac{\pi}{7} \approx 2.30476$
