The value of S enixl x√1+enixl dx equals :

1. v₁ = (4, −2, 6, −4), V₂ = (6, −3, 9, −6)

F.4

The length of a brick path is 12 feet. (A) You want to add an equal, unknown length of stones at each end to extend the path. Write an expression for the length of the extended path. Use x to represent the unknown length of stone added to each end. (B) If x=1.5 feet, how long is the extended path? Use your formula.