(a) In a right triangle, ABC, angle B is a right angle and tan A = Find exact values for (1) cos A (1) (ii) tan C(1) (b) Use the identities to find the exact vales of (1) cos 315 ( 1 ) (in) sin (1) () From the top of a cliff the angle of depression of a ship 1km out to sea is 5". Find the angle of depression of a fishing boat which is hall way between the cliff and the ship Correct to one decimal place.)