LIM (f (1-3x) - f (1)) / 2x if f (x) has derivative 2 when x = 1 X tends to zero

LIM (f (1-3x) - f (1)) / 2x if f (x) has derivative 2 when x = 1 X tends to zero

Original formula = 0.5 * (- 3) f '(1) = - 3
Consider - 3x as △ x, so the original formula = (1 / 2) * - 3) f '(1)

Elden Ring Premiere

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