Let f be a differentiable function such that f(0) = 5.420 and f'(x) = sqrt(sin²x+x). What is the value of f(2pi)?

The rest don't make sense so i say the first one.

What is the difference between psychoanalysis and psychophysics? c) psychoanalysis attempts to resolve conflict.

The answer is    (d) 7/2======we have    we also  have an integral      notice how function f splits up at x = 0. there's a left piece and a right pieceso we'll need to do the same thing with our integral: split it at x = 0we use a property of integrals that allows us to split up and sum:     notice that for the piecewise function f, the function has the equationf(x) = x when x  ≤ 0. so for the integral  , f(x) = x so it changes into      for the piecewise function f, the function has the equationf(x) = x+1  when x  > 0. for the integral  , we have    therefore, back to our splitted integral: