Getal & Ruimte (13e editie) - vwo wiskunde B

'Differentiëren'.

vwo wiskunde B 2.3 Limiet en afgeleide

Differentiëren (5)

opgave 1

Differentieer.

2p

a

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

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

a

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

1p

○

\(f'(x) = 4 x + 4 \text{.}\)

1p

2p

b

\(f(x) = x^{9} + 8 x^{8} - 5 x^{7} - 4 x^{6}\)

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

b

\(f'(x) = 9 ⋅ x^{8} + 8 ⋅ 8 ⋅ x^{7} - 5 ⋅ 7 ⋅ x^{6} - 4 ⋅ 6 ⋅ x^{5} \text{.}\)

1p

○

\(f'(x) = 9 x^{8} + 64 x^{7} - 35 x^{6} - 24 x^{5} \text{.}\)

1p

2p

c

\(f(p) = 3 p^{7} + 1\frac{1}{4} p^{5} + \frac{2}{7} p^{3}\)

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

c

\(f'(p) = 3 ⋅ 7 ⋅ p^{6} + 1\frac{1}{4} ⋅ 5 ⋅ p^{4} + \frac{2}{7} ⋅ 3 ⋅ p^{2} \text{.}\)

1p

○

\(f'(p) = 21 p^{6} + 6\frac{1}{4} p^{4} + \frac{6}{7} p^{2} \text{.}\)

1p

2p

d

\(f(a) = (7 a^{2} - 5) (a + 3)\)

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

d

(Haakjes wegwerken)
\(f(a) = (7 a^{2} - 5) (a + 3) = 7 a^{3} + 21 a^{2} - 5 a - 15\)

1p

○

(Differentiëren)
\(f'(a) = 21 a^{2} + 42 a - 5 \text{.}\)

1p

opgave 2

Differentieer.

2p

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

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

○

(Haakjes wegwerken)
\(f(a) = (3 a^{2} + 5)^{2} = 9 a^{4} + 30 a^{2} + 25\)

1p

○

(Differentiëren)
\(f'(a) = 36 a^{3} + 60 a \text{.}\)

1p

vwo wiskunde B 2.4 De productregel en de quotiëntregel

Differentiëren (4)

opgave 1

Differentieer met behulp van de productregel.

2p

a

\(f(p) = (-3 p + 1) (7 p^{2} + 5 p)\)

Productregel (1)
009z - Differentiëren - basis - basis - 1ms - dynamic variables

a

(Productregel)
\(f'(p) = -3 (7 p^{2} + 5 p) + (-3 p + 1) (14 p + 5) \text{.}\)

2p

2p

b

\(f(x) = (8 x^{2} + 4 x) (-6 x^{2} - 3 x + 2)\)

Productregel (2)
00a0 - Differentiëren - basis - basis - 0ms - dynamic variables

b

(Productregel)
\(f'(x) = (16 x + 4) (-6 x^{2} - 3 x + 2) + (8 x^{2} + 4 x) (-12 x - 3) \text{.}\)

2p

opgave 2

Differentieer.

2p

a

\(f(a) = {-3 a - 7 \over -4 a - 1}\)

Quotientregel (1)
00a1 - Differentiëren - basis - eind - 0ms - dynamic variables

a

(Quotiëntregel)
\(f'(a) = {(-4 a - 1) ⋅ -3 - (-3 a - 7) ⋅ -4 \over (-4 a - 1)^{2}} \text{.}\)

1p

○

\(f'(a) = {(12 a + 3) - (12 a + 28) \over (-4 a - 1)^{2}} = {-25 \over (-4 a - 1)^{2}} \text{.}\)

1p

2p

b

\(f(a) = {4 a^{2} \over -6 a - 8}\)

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

b

(Quotiëntregel)
\(f'(a) = {(-6 a - 8) ⋅ 8 a - 4 a^{2} ⋅ -6 \over (-6 a - 8)^{2}} \text{.}\)

1p

○

\(f'(a) = {(-48 a^{2} - 64 a) - -24 a^{2} \over (-6 a - 8)^{2}} = {-24 a^{2} - 64 a \over (-6 a - 8)^{2}} \text{.}\)

1p

vwo wiskunde B 6.2 De afgeleide van machtsfuncties

Differentiëren (6)

opgave 1

Differentieer.

3p

a

\(f(p) = {3 \over 7 p^{9}}\)

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

a

(Herleiden)
\(f(p) = {3 \over 7 p^{9}} = \frac{3}{7} p^{-9}\)

1p

○

(Differentiëren)
\(f'(p) = \frac{3}{7} ⋅ -9 ⋅ p^{-10} = -\frac{27}{7} ⋅ p^{-10}\)

1p

○

(Herleiden)
\(f'(p) = -\frac{27}{7} ⋅ {1 \over p^{10}} = -{27 \over 7 p^{10}}\)

1p

3p

b

\(f(x) = -3 x ⋅ \sqrt[8]{x^{5}}\)

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

b

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

1p

○

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

1p

○

(Herleiden)
\(f'(x) = -4\frac{7}{8} ⋅ x^{0} ⋅ x^{\frac{5}{8}} = -4\frac{7}{8} ⋅ \sqrt[8]{x^{5}}\)

1p

3p

c

\(f(a) = {a^{6} - 4 a \over 3 a^{3}}\)

Uitdelen (1)
00dm - Differentiëren - basis - eind - 0ms - dynamic variables

c

(Uitdelen)
\(f(a) = {a^{6} \over 3 a^{3}} - {4 a \over 3 a^{3}} = \frac{1}{3} a^{3} - \frac{4}{3} a^{-2}\)

1p

○

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

1p

○

(Herleiden)
\(f'(a) = a^{2} + {8 \over 3 a^{3}}\)

1p

4p

d

\(f(a) = {a^{4} + 2 \over \sqrt[5]{a}}\)

Uitdelen (2)
00dn - Differentiëren - basis - eind - 0ms - dynamic variables

d

(Herleiden)
\(f(a) = {a^{4} + 2 \over a^{\frac{1}{5}}}\)

1p

○

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

1p

○

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

1p

○

(Herleiden)
\(f'(a) = 3\frac{4}{5} a^{2} ⋅ \sqrt[5]{a^{4}} - {2 \over 5 a ⋅ \sqrt[5]{a}}\)

1p

opgave 2

Differentieer.

3p

a

\(f(x) = {8 \over 9 \sqrt{x}} + 8 \sqrt{x}\)

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

a

(Herleiden)
\(f(x) = {8 \over 9 \sqrt{x}} + 8 \sqrt{x} = \frac{8}{9} x^{-\frac{1}{2}} + 8 x^{\frac{1}{2}}\)

1p

○

(Differentiëren)
\(f'(x) = \frac{8}{9} ⋅ -\frac{1}{2} ⋅ x^{-1\frac{1}{2}} + 8 ⋅ \frac{1}{2} ⋅ x^{-\frac{1}{2}}\)

1p

○

(Herleiden)
\(f'(x) = -{4 \over 9 x \sqrt{x}} + {4 \over \sqrt{x}}\)

1p

4p

b

\(f(a) = {2 a + 5 \over a ⋅ \sqrt{a}}\)

Uitdelen (3)
00dp - Differentiëren - basis - eind - 0ms - dynamic variables

b

(Herleiden)
\(f(a) = {2 a + 5 \over a^{1\frac{1}{2}}}\)

1p

○

(Uitdelen)
\(f(a) = {2 a \over a^{1\frac{1}{2}}} + {5 \over a^{1\frac{1}{2}}} = 2 a^{-\frac{1}{2}} + 5 a^{-1\frac{1}{2}}\)

1p

○

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

1p

○

(Herleiden)
\(f'(a) = -{1 \over a ⋅ \sqrt{a}} - {15 \over 2 a^{2} ⋅ \sqrt{a}}\)

1p

vwo wiskunde B 6.3 De kettingregel

Differentiëren (5)

opgave 1

Differentieer.

2p

a

\(f(x) = 5 (7 x + 4)^{6}\)

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

a

(Kettingregel)
\(f'(x) = 5 ⋅ 6 ⋅ (7 x + 4)^{5} ⋅ 7\)

1p

○

(Herleiden)
\(f'(x) = 210 (7 x + 4)^{5} \text{.}\)

1p

3p

b

\(f(a) = -{1 \over (3 a - 5)^{2}}\)

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

b

(Herleiden)
\(f(a) = -{1 \over (3 a - 5)^{2}} = -1 ⋅ (3 a - 5)^{-2}\)

1p

○

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

1p

○

(Herleiden)
\(f'(a) = 6 ⋅ (3 a - 5)^{-3} = {6 \over (3 a - 5)^{3}}\)

1p

3p

c

\(f(a) = -3 \sqrt{4 a + 1}\)

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

c

(Herleiden)
\(f(a) = -3 \sqrt{4 a + 1} = -3 ⋅ (4 a + 1)^{\frac{1}{2}} \text{.}\)

1p

○

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

1p

○

(Herleiden)
\(f'(a) = -6 ⋅ (4 a + 1)^{-\frac{1}{2}} = -{6 \over \sqrt{4 a + 1}}\)

1p

3p

d

\(f(p) = -{5 \over 6 \sqrt{5 p + 3}}\)

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

d

(Herleiden)
\(f(p) = -{5 \over 6 \sqrt{5 p + 3}} = -\frac{5}{6} ⋅ (5 p + 3)^{-\frac{1}{2}}\)

1p

○

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

1p

○

(Herleiden)
\(f'(p) = \frac{25}{12} ⋅ (5 p + 3)^{-1\frac{1}{2}} = {25 \over 12 (5 p + 3) \sqrt{5 p + 3}}\)

1p

opgave 2

Differentieer.

2p

\(f(x) = 6 (5 x^{3} + 2 x + 1)^{4}\)

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

○

(Kettingregel)
\(f'(x) = 6 ⋅ 4 ⋅ (5 x^{3} + 2 x + 1)^{3} ⋅ (15 x^{2} + 2)\)

1p

○

(Herleiden)
\(f'(x) = (360 x^{2} + 48) ⋅ (5 x^{3} + 2 x + 1)^{3}\)

1p

vwo wiskunde B 9.5 De natuurlijke logaritme

Differentiëren (2)

opgave 1

Differentieer.

2p

a

\(f(x) = -6 ⋅ 2^{5 x^{3} + x}\)

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

a

\(f(x) = -6 ⋅ 2^{5 x^{3} + x} ⋅ \ln(2) ⋅ (15 x^{2} + 1) = (-90 x^{2} - 6) ⋅ 2^{5 x^{3} + x} ⋅ \ln(2)\)

2p

2p

b

\(f(x) = (5 x + 2) ⋅ e^{2 x - 6}\)

ExponentieelMetProductregel
00j8 - Differentiëren - basis - eind - 1ms - dynamic variables

b

\(f(x) = 5 ⋅ e^{2 x - 6} + (5 x + 2) ⋅ e^{2 x - 6} ⋅ 2\)
\(\text{ } = 5 ⋅ e^{2 x - 6} + (10 x + 4) ⋅ e^{2 x - 6}\)
\(\text{ } = (10 x + 9) ⋅ e^{2 x - 6}\)

2p

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