Question

3. For f(x) = e-x and h = 0.6 

a) Use forward and backward difference approximations to estimate the second derivatives of f(x) at x = 2. Use the least accurate formulas available.

b) Using the most accurate centered difference formula, estimate the second derivative of f(x) at x=2. 

3. For f(x) =-* and h = 0.6 a) Use forward and backward difference approximations to estimate the second derivatives of f(x)

raS) + 486)-550) + 2/6) R Backward Difference First Derivative f(s) - $6 h 3f(x) - 4f(x-1) + f(x->) 2h Second Derivative f(x)

286) -586-+ 476-) - 16-) Centered Difference First Derivative f(x-1)-f(x-) f(x) = 2h -f(x) + f(x+1) - 8f(x)) + f(x ) 12h Sec

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