Question 3 Find the derivative of y = 2r-5 Not yet answered Marked out of 1.00 Flag question Select one: Oa. dy -(2x-5)cscrcotx-2cote (2x-5)2 Ob. dy -(2x-5)cscr-2cotr (21-5) O c. dy a2cscr+(2x-5) cote (2x-5)2 O d. dy -(21-5)cscar-2cotr (2x-5)2 O e. Question 4 Use product rule to find the derivative of f(x) = (x2 + 5cosx)(x3 - 2x + tanx). Not yet answered Marked out of 1.00 Flag question Select one: O a. f'(x) = (2x - 5sinx) ((x3 - 2x + tanx) + (x2 + 5cosx) (3x2 + sec x - 2). Ob. f'(x) = (2x + 5sinx)((x3 - 2x + tanx) + (x2 + 5cosx)(3x2 + sec. x - 2). O c. f'(x) = (2x - 5sinx) ((x3 - 2x + tanx) + (x2 + 5cosx) (3x2 + sec x + 2). Od. f'(x) = (2x - 5sinx) ((x3 - 2x + tanx) + (x2 + 5cosx) (3x2 - sec2x - 2). Oe. f'(x) = (2x - 5sinx) (3x2 + sec2x - 2)