Find the value of each trigonometric ratio:
[tex]\[
\sin \left(30^{\circ}\right)
\][/tex]
[tex]\[
\sin \left(60^{\circ}\right)
\][/tex]
[tex]\[
\cos \left(60^{\circ}\right)
\][/tex]
[tex]\[
\tan \left(60^{\circ}\right)
\][/tex]
[tex]\[
\cos \left(30^{\circ}\right)
\][/tex]
[tex]\[
\tan \left(30^{\circ}\right)
\][/tex]
[tex]\[
\tan \left(60^{\circ}\right)
\][/tex]