f'(x) = 6e(cos(x))-xsin(x))
f''(x) = 6e(cos(x)-xsin(x)))
Search at symbolab derivative calculator and watch the steps there!
Since I'm not a tutor nor a teacher, it is very hard for me to show step-by-step, but I suggest you should view the (derivative) calculator.
Answer:
Step-by-step explanation:
Substitute the value x=4 into f(x): f(4)=−6e4; f(4)≈−327.6.
