Question

At noon, ship A is 100km

100
km
west of ship B. Ship A is sailing south at 45km/h
45
km/h
and ship B is sailing north at 25km/h.
25
km/h
.
How fast is the distance between the ships changing at 4:00pm.

Answer 1

`\left \{ {{y=2} \atop {x=2}} \right. \lim_(n \to \infty) a_n \int\limits^a_b {x} \, dx \left \{ {{y=2} \atop {x=2}} \right. \sqrt[n]{x} x_(123) \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right] \int\limits^a_b {x} \, dx √(x) x_(123) \\ \beta \sqrt[n]{x}` SORRY IF IT DOESNT MAKE SENCE