Question

1) A man is in a boat 2 miles from the nearest point on the coast. He is to go to point Q, located 3 miles down the coast and 1 mile inland (see figure). He can row at a rate of 4 miles per hour and walk at 4 miles per hour. Toward what point on the coast should he row in order to reach point Q in the least time? (Round your answer to two decimal places.

2) Find the differential dy of the given function.

y = e^−0.7x cos 7x

will you please answer both? would be really appreciated

Answer 1

solved in sheet