find the critical numbers of , if any, find the open intervals on which the function is increasing or decreasing, apply the First Derivative Test to identify all relative extrema, and use a graphing utility to confirm your results.

my guess would be b and d, but i didn’t actually get out the pen and paper. lol

the first option is the answer.

38.6°

step-by-step explanation:

resultant is 10 pound

smaller force = 8 pound

angle formed = tan⁻¹(

                        =tan⁻¹(

                          =tan⁻¹(0.8)

                        =38.6°