Question: Answer quickly don't explain too much please: 20(a) Verify that the slope of the tangent of f(x) = x2 - 2x + 4 at x

Answer quickly don't explain too much please: 20(a) Verify that the

Answer quickly don't explain too much please:

20(a) Verify that the slope of the tangent of f(x) = x2 - 2x + 4 at x = 1 is zero. 20(b) Does f(x) have a maximum value or minimum value at x = 1? Justify your

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