Find the stationary points of f(x)=2x4+316x316x2+4 and determine the nature of the stationary point in each case. For each point enter the x-coordinate of the stationary point (as an integer or single fraction) and then either A,B or C for maximum, minimum or point of inflection. The 1st stationary point is x= The nature of this point is: where A: maximum B: minimum C: point of inflection The 2nd stationary point is x= The nature of this point is: where A: maximum B: minimum C: point of inflection