Getal & Ruimte (12e editie) - vwo wiskunde A

'Differentiëren'.

vwo wiskunde A 8.3 Differentiëren

Differentiëren (5)

opgave 1

Differentieer.

2p

a

\(f(x) = 6 x^{2} + 9 x + 2\)

Machtsfunctie (1)
009w - Differentiëren - basis - basis - 1ms - dynamic variables

a

\(f'(x) = 6 ⋅ 2 ⋅ x^{1} + 9 \text{.}\)

1p

○

\(f'(x) = 12 x + 9 \text{.}\)

1p

2p

b

\(f(x) = 5 x^{5} + 4 x^{4} - 6 x^{2}\)

Machtsfunctie (2)
009x - Differentiëren - basis - basis - 2ms - dynamic variables

b

\(f'(x) = 5 ⋅ 5 ⋅ x^{4} + 4 ⋅ 4 ⋅ x^{3} - 6 ⋅ 2 ⋅ x^{1} \text{.}\)

1p

○

\(f'(x) = 25 x^{4} + 16 x^{3} - 12 x \text{.}\)

1p

2p

c

\(f(a) = 2\frac{1}{4} a^{8} + 1\frac{2}{5} a^{5} + \frac{2}{3}\)

Machtsfunctie (3)
009y - Differentiëren - basis - basis - 0ms - dynamic variables

c

\(f'(a) = 2\frac{1}{4} ⋅ 8 ⋅ a^{7} + 1\frac{2}{5} ⋅ 5 ⋅ a^{4} \text{.}\)

1p

○

\(f'(a) = 18 a^{7} + 7 a^{4} \text{.}\)

1p

2p

d

\(f(a) = (8 a^{2} + 9) (a - 5)\)

HaakjesUitwerken (1)
00df - Differentiëren - basis - eind - 0ms - dynamic variables

d

(Haakjes wegwerken)
\(f(a) = (8 a^{2} + 9) (a - 5) = 8 a^{3} - 40 a^{2} + 9 a - 45\)

1p

○

(Differentiëren)
\(f'(a) = 24 a^{2} - 80 a + 9 \text{.}\)

1p

opgave 2

Differentieer.

2p

\(f(p) = (4 p^{3} - 2)^{2}\)

HaakjesUitwerken (2)
00dg - Differentiëren - basis - eind - 0ms - dynamic variables

○

(Haakjes wegwerken)
\(f(p) = (4 p^{3} - 2)^{2} = 16 p^{6} - 16 p^{3} + 4\)

1p

○

(Differentiëren)
\(f'(p) = 96 p^{5} - 48 p^{2} \text{.}\)

1p

vwo wiskunde A 8.4 Notaties en regels voor de afgeleide

Differentiëren (8)

opgave 1

Differentieer.

3p

a

\(f(x) = -{5 \over 4 x^{3}}\)

NegatieveMacht
00de - Differentiëren - basis - basis - 0ms - dynamic variables

a

(Herleiden)
\(f(x) = -{5 \over 4 x^{3}} = -\frac{5}{4} x^{-3}\)

1p

○

(Differentiëren)
\(f'(x) = -\frac{5}{4} ⋅ -3 ⋅ x^{-4} = \frac{15}{4} ⋅ x^{-4}\)

1p

○

(Herleiden)
\(f'(x) = \frac{15}{4} ⋅ {1 \over x^{4}} = {15 \over 4 x^{4}}\)

1p

2p

b

\(f(p) = 5 (\frac{7}{8} p - 1)^{8}\)

Kettingregel (1)
00dh - Differentiëren - basis - basis - 0ms - dynamic variables

b

(Kettingregel)
\(f'(p) = 5 ⋅ 8 ⋅ (\frac{7}{8} p - 1)^{7} ⋅ \frac{7}{8}\)

1p

○

(Herleiden)
\(f'(p) = 35 (\frac{7}{8} p - 1)^{7} \text{.}\)

1p

3p

c

\(f(a) = {4 \over (5 a - 1)^{2}}\)

KettingregelMetGebroken
00di - Differentiëren - basis - midden - 0ms - dynamic variables

c

(Herleiden)
\(f(a) = {4 \over (5 a - 1)^{2}} = 4 ⋅ (5 a - 1)^{-2}\)

1p

○

(Kettingregel)
\(f'(a) = 4 ⋅ -2 ⋅ (5 a - 1)^{-3} ⋅ 5\)

1p

○

(Herleiden)
\(f'(a) = -40 ⋅ (5 a - 1)^{-3} = -{40 \over (5 a - 1)^{3}}\)

1p

3p

d

\(f(a) = \frac{6}{7} \sqrt{2 a + 5}\)

KettingregelMetWortel
00dj - Differentiëren - basis - midden - 0ms - dynamic variables

d

(Herleiden)
\(f(a) = \frac{6}{7} \sqrt{2 a + 5} = \frac{6}{7} ⋅ (2 a + 5)^{\frac{1}{2}} \text{.}\)

1p

○

(Kettingregel)
\(f'(a) = \frac{6}{7} ⋅ \frac{1}{2} ⋅ (2 a + 5)^{-\frac{1}{2}} ⋅ 2\)

1p

○

(Herleiden)
\(f'(a) = \frac{6}{7} ⋅ (2 a + 5)^{-\frac{1}{2}} = {6 \over 7 \sqrt{2 a + 5}}\)

1p

opgave 2

Differentieer.

3p

a

\(f(x) = {8 \over 5 \sqrt{5 x - 3}}\)

KettingregelMetGebrokenWortel
00dk - Differentiëren - basis - eind - 0ms - dynamic variables

a

(Herleiden)
\(f(x) = {8 \over 5 \sqrt{5 x - 3}} = \frac{8}{5} ⋅ (5 x - 3)^{-\frac{1}{2}}\)

1p

○

(Kettingregel)
\(f'(x) = \frac{8}{5} ⋅ -\frac{1}{2} ⋅ (5 x - 3)^{-1\frac{1}{2}} ⋅ 5\)

1p

○

(Herleiden)
\(f'(x) = -4 ⋅ (5 x - 3)^{-1\frac{1}{2}} = -{4 \over (5 x - 3) \sqrt{5 x - 3}}\)

1p

3p

b

\(f(a) = 5 a^{3} ⋅ \sqrt[3]{a^{2}}\)

GebrokenMacht
00dl - Differentiëren - basis - basis - 0ms - dynamic variables

b

(Herleiden)
\(f(a) = 5 a^{3} ⋅ \sqrt[3]{a^{2}} = 5 ⋅ a^{3} ⋅ a^{\frac{2}{3}} = 5 ⋅ a^{3\frac{2}{3}}\)

1p

○

(Differentiëren)
\(f'(a) = 5 ⋅ 3\frac{2}{3} ⋅ a^{2\frac{2}{3}}\)

1p

○

(Herleiden)
\(f'(a) = 18\frac{1}{3} ⋅ a^{2} ⋅ a^{\frac{2}{3}} = 18\frac{1}{3} a^{2} ⋅ \sqrt[3]{a^{2}}\)

1p

3p

c

\(f(p) = {8 \over 3 \sqrt{p}} + 8 \sqrt{p}\)

GebrokenWortel
00do - Differentiëren - basis - eind - 0ms - dynamic variables

c

(Herleiden)
\(f(p) = {8 \over 3 \sqrt{p}} + 8 \sqrt{p} = \frac{8}{3} p^{-\frac{1}{2}} + 8 p^{\frac{1}{2}}\)

1p

○

(Differentiëren)
\(f'(p) = \frac{8}{3} ⋅ -\frac{1}{2} ⋅ p^{-1\frac{1}{2}} + 8 ⋅ \frac{1}{2} ⋅ p^{-\frac{1}{2}}\)

1p

○

(Herleiden)
\(f'(p) = -{4 \over 3 p \sqrt{p}} + {4 \over \sqrt{p}}\)

1p

2p

d

\(f(a) = 6 (2 a^{3} + 5 a + 1)^{3}\)

Kettingregel (2)
00j9 - Differentiëren - basis - basis - 0ms - dynamic variables

d

(Kettingregel)
\(f'(a) = 6 ⋅ 3 ⋅ (2 a^{3} + 5 a + 1)^{2} ⋅ (6 a^{2} + 5)\)

1p

○

(Herleiden)
\(f'(a) = (108 a^{2} + 90) ⋅ (2 a^{3} + 5 a + 1)^{2}\)

1p

vwo wiskunde A 10.5 Groeisnelheid

Differentiëren (1)

opgave 1

Differentieer.

2p

\(f(x) = -2 ⋅ e^{5 x^{2} + 3 x}\)

Exponentieel
00j7 - Differentiëren - basis - eind - 2ms - dynamic variables

○

\(f(x) = -2 ⋅ e^{5 x^{2} + 3 x} ⋅ (10 x + 3) = (-20 x - 6) ⋅ e^{5 x^{2} + 3 x}\)

2p

vwo wiskunde A 14.2 Regels voor de afgeleide

Differentiëren (2)

opgave 1

Differentieer.

2p

a

\(f(a) = {-a + 4 \over 7 a + 8}\)

Quotientregel (1)
00a1 - Differentiëren - basis - eind - 1ms - dynamic variables

a

(Quotiëntregel)
\(f'(a) = {(7 a + 8) ⋅ -1 - (-a + 4) ⋅ 7 \over (7 a + 8)^{2}} \text{.}\)

1p

○

\(f'(a) = {(-7 a - 8) - (-7 a + 28) \over (7 a + 8)^{2}} = {-36 \over (7 a + 8)^{2}} \text{.}\)

1p

2p

b

\(f(x) = {9 x^{2} \over -2 x + 5}\)

Quotientregel (2)
00a2 - Differentiëren - basis - eind - 0ms - dynamic variables

b

(Quotiëntregel)
\(f'(x) = {(-2 x + 5) ⋅ 18 x - 9 x^{2} ⋅ -2 \over (-2 x + 5)^{2}} \text{.}\)

1p

○

\(f'(x) = {(-36 x^{2} + 90 x) - -18 x^{2} \over (-2 x + 5)^{2}} = {-18 x^{2} + 90 x \over (-2 x + 5)^{2}} \text{.}\)

1p

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