Could you please answer them and explain the reasons too? Thanks a lot!!!

6. Truc or false a. In fa S (x) dx, b is the upper limit of integration. b. In a Riemann sum, if n - co this causes Ax - 0 C. ["f(x) = liff(x) is continuous d. In the fundamental theorem of calculus if F(x) = f(x) then Saf(z) dz = F(b)-F(a) C. If f (x) is an odd function, then f f(x) = 0 fif(x)da = - ff(x)dx &. One difference between an indefinite integral and a definite integral is that the answer to an indefinite integral is a function while the CS Scannednswepta definite integral is number