g Let f(x) be continuously di erentiable. Here is a di erent persepctive on Integration by Parts. a) Use integration by parts to show: Z f(x) dx = xf(x) Z xf0(x) dx a) What piece of the result in part (a) relies on f(x) being continuously di erentiable?

0 is its x and y coordinate

what

rotation point l

step-by-step explanation:

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.