• 
  • 
    
    • 
      
      • 
        
        • 
          

There is a relationship between the coefficients of the power series f(x) = En oan (x-a)" and its derivatives. an = f(n)(a)/n!, n = 0, 1, 2,.... Problem Suppose that there is a power series f(x) whose first few terms are f(x) = x + x + x/3 - x/30 - x6/90... Then f(5) (0) =