Answer
$y$$_{1}$ = $\sin$
$y$$_{2}$ = $\tan$
Work Step by Step
We must verify the values in each column to each function.
$\sin$ 0$^{\circ}$ = 0
$\sin$ 15$^{\circ}$ = .25882
$\sin$ 30$^{\circ}$ = $\frac{1}{2}$ = 0.5
$\sin$ 45$^{\circ}$ = $\frac{\sqrt2}{2}$ = 0.70711
$\sin$ 60$^{\circ}$ = $\frac{\sqrt3}{2}$ = 0.86603
$\sin$ 75$^{\circ}$ = $\frac{\sqrt3 + 2}{2\sqrt2}$ = 0.96593
$\sin$ 90$^{\circ}$ = 1
$\tan$ 0$^{\circ}$ = 0
$\tan$ 15$^{\circ}$ = .26795
$\tan$ 30$^{\circ}$ = $\frac{1}{\sqrt3}$ = .57735
$\tan$ 45$^{\circ}$ = 1
$\tan$ 60$^{\circ}$ = $\sqrt3$ = 1.7321
$\tan$ 75$^{\circ}$ = 3.7321
$\tan$ 90$^{\circ}$ = undefined