Mathematikkenntnisse

• a

  $f'(x) = - 6b + 4$

• b

  $f'(x) = - 12b^{2} + 4$

• c

  $f'(x) = - 12b + 4$

• d

  $f'(x) = - 2b^{3} + 2b^{2} + 3b$