22 If f(x) is a positive integrable function, then which one of these conditions will always be true about its integral. O x) dx = (x)dx O 4f(x)dx = f(x)dx O f(x)dx=0 *flx)dx = -flx)dx QUESTION 23 IT [*flx) dx = - [lx f(x)dx QUESTION 23 Use the integration by parts to find the definite integral OOO 12e4 +16 1 14 4 O 1 -12e4 - 16 e* dx Save All 7:39 PM