Problem
Intuitive explanation
This problem asks you to evaluate expressions involving inverse trig functions—the key is to construct a right triangle for each inverse function, then read off the sides you need. For , ask "what angle has secant equal to 2?" and sketch a triangle where the hypotenuse is 2 and the adjacent side is 1. Similarly, for , build a triangle with hypotenuse 3 and opposite side 1. Once you have the triangles, use the Pythagorean theorem to find the missing sides, then compute and directly from those side lengths.
Intuitive explanation
This problem asks you to evaluate expressions involving inverse trig functions—the key is to construct a right triangle for each inverse function, then read off the sides you need. For , ask "what angle has secant equal to 2?" and sketch a triangle where the hypotenuse is 2 and the adjacent side is 1. Similarly, for , build a triangle with hypotenuse 3 and opposite side 1. Once you have the triangles, use the Pythagorean theorem to find the missing sides, then compute and directly from those side lengths.