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Why must this problem be solved using KKT?   (This is a bonus question, you can get 5 extra points)

The following description will be used in questions 2 to 6. Consider two distinct production functions (f1 and f2) that use two inputs (x1 and x2) to produce one output (y). Such functions have the form f1=min (a*x1 , b*x2) and f2=c*x1+d*x2, where a,b,c and d are positive scalars, p1 is the cost of one unit of input x1, p2 is the cost of one unit of input x2, and y represents the production level.     

Which of the following is one of the primary mechanisms that cause an acromioclavicular joint sprain?

If an athlete steps into a hole and the ankle is forced into dorsiflexion, which ligament is usually involved?

Strains are always a problem for athletes. Why do they tend to recur?

Which of the following is caused by improper care of a thigh contusion, leading to ectopic bone formation within the quadriceps muscle?

Eversion ankle sprains are less common than inversion ankle sprains.

Discuss the signs of hamstring strains.

An injury to the lateral collateral ligament most often occurs either as a result of a laterally directed varus force from the medial side or from medial rotation of the tibia.

A patella usually dislocates in what direction?