Gegeben
F ( 0 ) = 2
F ´( 0 ) = 0
F (2 ) = 4
F ´( 2 ) = 0
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F ( x ) = a * x^3 + b * x^2 + c * x + d
F ( 0 ) = a * 0^3 + b * 0^2 + c * 0 + d = 2
d= 2
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F ( x ) = a * x^3 + b * x^2 + c * x + 2
F ´ ( x ) = 3*a * x^2 + 2*b * x + c
F ´ ( 0 ) = 3*a * 0^2 + 2*b * 0 + c = 0
c = 0
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F ( x ) = a * x^3 + b * x^2 + 2
F ´( x ) = 3 *a * x^2 + 2 *b * x
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F ( 2 ) = a * 2^3 + b * 2^2 + 2 = 4
F ´( 2 ) = 3 *a * 2^2 + 2 *b * 2 = 0
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8a + 4b + 2 = 4
12a + 4 *b = 0 | abziehen
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8a - 12a + 2 = 4
-4a= 2
a = -1/2
8a + 4b + 2 = 4
8 * -1//2 + 4b + 2 = 4
-4 + 4b + 2= 4
4b = 6
b = 1.5
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F(x) = -0,5·x^3 + 1,5·x^2 + 2
F ' (x) = -1,5·x^2 + 3·x