Problem #7: Find y' ify = x cosh.x 2 cosh x - x sinh x 2 cosh x - 3 sinh x 2 cosh x - sinh x 2 coshx + sinhx (A) 2 coshx + 3 sinh x 3x1/3 (B 3x1/3 (C) (D) 3x173 (E) 3713 2 cosh x + 3x sinh x 2 cosh x + x sinh x (F) 2 cosh x - 3x sinh 3x1/3 (G) 3x-1/3 (H) 37-173 Problem #7: Select v Just Save |Your work has been saved! (Back to Admin Page) Submit Problem #7 for Grading Problem #7 Attempt # 1 Attempt #2 Attempt # 3 Your Answer: Your Mark: O B 18'C Cloudy acer 19 F10 F11 $12