Evaluate the following antiderivatives.

a$)/7$ sec$?(2)+$ e$$ da $=$

$7$ tan $($x$)+$ e$*$

$+$ C

b$)/$AVE $-$

$4$

Vx

dx $=$

$8$

$3$

$2$

$1$

$2$

$-8$x

$+$ C