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Find the derivative of f (y) = 2 sin9 ('97). Enclose arguments of functions in parentheses. For example, sin (2w). Include a multiplication sign between symbols, and so to enter this as sin(2*x). If you want to write a power of a trigonometric function, remember that writing sin(x) to the fourth power as sin4 (as) is just a shorthand method. To be mathematically correct, you should write that as (sin (m))4 - which is what Mobius expects. a % 5 lal 1r sin(a) 1m 0 f' (y) =E