help please

fect answer without an explanation will not eam any credit. Find the derivative of f (y) - 5 sin" (y ) Enclose arguments of functions in parentheses. For example, sin (2z). 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 sin* (x) is just a shorthand method. To be mathematically correct, you should write that as (sin (I) )" - which is what Mobius expects. Sin (4)