Exercise: Find the Sine, Cosine, and Tangent of 2 times Theta + PDF Transcript for Exercise: : Find the Sine, Cosine, and Tangent of 2 times Theta 8 sin 0 = =, tan @> 0 9. cos 0= -, sin 0 > 0 Answer Text i need # 11 Mos 0 = - 0 in Quadrant III 11. tan 0 = 0 in Quadrant II Answer83. A feeding trough for cattle is made from a metal sheet 3 ft wide. The sides of the trough are made by folding up a flap I ft wide from each end of the strip. Each flap makes an angle O with the horizontal. a. Write an expression representing the area of a cross section of the trough in terms of 0. Answer b. Show that the area can be written as A = N/ - - sin 20 + sin 0. 1 ft 1 ft 1 ft 0 1 ft 3 ft 3 ft