g(t)=
⎩
⎪
⎪
⎪
⎪
⎪
⎪
⎪
⎪
⎨
⎪
⎪
⎪
⎪
⎪
⎪
⎪
⎪
⎧
​

−2t(t+1)
6
5t
​

2t
2
+3t
​

,
,
,
​

t 12
​

g
(
12
)
=
g(12)=g, left parenthesis, 12, right parenthesis, equals