How do you differentiate #f(x)=x / cot (x) + 3# using the quotient rule?

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15

Look at the hyperbola graphed below. the hyperbola gets very close to the red lines on the graph, but it never touches them. which term describes each of the red lines? o o o o a. asymptote b. directrix c. focus d. axis

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25