Critical points of functions with unknown parameters ?Find the critical points off. Assume a and b are constants.

Solution 56E Step-1 Critical value definition ; Let f be a continuous function defined on an open interval containing a 1 number ‘c’.The number ‘c’ is critical value ( or critical number ). If f (c) = 0 or 1 f (c) is undefined. A critical point on that graph of f has the form (c,f(c)). Step-2 x a). The given function is f(x) = xa . Clearly the function is a rational function and here the denominator is not equal to zero . So , x - a > 0 That is , x > a Therefore , x belongs to ( a, ) Therefore, the given function is continuous on ( a, ). Now , we have to find out the critical points of f on the given interval. x Now , f(x) = xa for the...