Question 1 of 8 View Policies Current Attempt in Progress Find the arc length L of the graph of r(t). r(1) = Pittj+ V/612 k, 15155 L =Question 3 of 8 > View Policies Current Attempt in Progress Evaluate the definite integral. NOTE: Enter the exact answer. .2 ti + +2j dtQuestion 2 of 8 > View Policies Current Attempt in Progress Use the formula k(t) = |r(t) xr (t)ll to find k(t). |/r' (t) 1/3 r(t) = etti+ etj K(t) =Question 4 of 8