What is the approximate value of the first derivative of f(x)--0.1x-0. 15x-0.5x -0.25x-1.2 at x-0.75 using a step size of 0.25 nsing Forward Divided Difference? -1.7542 b. a. -1.7778 -1.8952 c. d. -1 8266 OB O A O D

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