b) Differentiate the function below with respect to x. sin(-5+x) 4-8x f(x) = = Note: • In Text mode the correct syntax is, say (6cos(5+6x)(4+6x)-6sin(5+6x))/(4+6x)^2. Take note of the outer brackets in numerator. 6 cos(5+6z)+(4+6z)-6 sin(5+6z) (4+6x)2 • In Symbolic mode the correct syntax is, say ƒ'(x) =

Suppose g(a)=16.8cos(0.8a). What is the argument of the cosine function? (Enter an expression.) For the value of cosine to vary through a complete cycle of its outputs, the value of the argument must increase from 0 to __________ .    For the value of cosine to vary through a complete cycle of its outputs, the value of the input of g must increase from 0 to ___________ .    What is the period of the function g?