3. (20 points) (3) Verify the identity: tan 8 + cot 8 _ sec 9 csc 9 (b) Verify the identity cot :9 tan :9 = .28 c0t8+ta118 (30% (c) Find all the values of S with 0 ? 9 2 360 Where c052(29) = sin2(29) 1 4. (10 points) An airplane is traveling with an airspeed of 600 km / h with a heading of 105. The wind is blowing at a speed of 40 krn/ h in the direction of 215. What is the ground speed of the airplane and in which direction is it traveling? Round the ground speed (length) to the nearest 0.01 and round the direction to the nearest 0.1