So, i figured out how to find the sine and cosine of ββ, but i wasn't sure how to complete the problem. do i find the sine of ββ and the sine of 2 separately then divide them? is it more or less complicated than that? for the !

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.