Logaritmen herleiden

Optellen (1)
00ku - Logaritmen herleiden - 0ms - dynamic variables

Herleid tot één logaritme.

1p

\({}^{4}\!\log(2) + {}^{4}\!\log(5 x + 1)\)

○

\({}^{4}\!\log(2) + {}^{4}\!\log(5 x + 1)\)
\(\text{ } = {}^{4}\!\log(2 ⋅ (5 x + 1))\)
\(\text{ } = {}^{4}\!\log(10 x + 2)\)

1p

Aftrekken
00kv - Logaritmen herleiden - 1ms - dynamic variables

Herleid tot één logaritme.

1p

\({}^{4}\!\log(2 x) - {}^{4}\!\log(x + 5)\)

○

\({}^{4}\!\log(2 x) - {}^{4}\!\log(x + 5)\)
\(\text{ } = {}^{4}\!\log({2 x \over x + 5})\)

1p

Grondtal (1)
00ky - Logaritmen herleiden - 0ms - dynamic variables

Herleid tot één logaritme.

2p

\(3 + {}^{2}\!\log(x - 5)\)

○

\(3 + {}^{2}\!\log(x - 5)\)
\(\text{ } = {}^{2}\!\log(2^{3}) + {}^{2}\!\log(x - 5)\)
\(\text{ } = {}^{2}\!\log(8) + {}^{2}\!\log(x - 5)\)

1p

○

\(\text{ } = {}^{2}\!\log(8 ⋅ (x - 5))\)
\(\text{ } = {}^{2}\!\log(8 x - 40)\)

1p

Vermenigvuldigen
00kw - Logaritmen herleiden - 0ms - dynamic variables

Herleid tot één logaritme.

2p

\(3 ⋅ {}^{2}\!\log(5 a)\)

○

\(3 ⋅ {}^{2}\!\log(5 a)\)
\(\text{ } = {}^{2}\!\log((5 a)^{3})\)

1p

○

\(\text{ } = {}^{2}\!\log(125 a^{3})\)

1p

Grondtal (2)
00kz - Logaritmen herleiden - 0ms - dynamic variables

Herleid tot één logaritme.

3p

\({}^{5}\!\log(25) + {}^{3}\!\log(4 x - 1)\)

○

\({}^{5}\!\log(25) + {}^{3}\!\log(4 x - 1)\)
\(\text{ } = {}^{5}\!\log(5^{2}) + {}^{3}\!\log(4 x - 1)\)
\(\text{ } = 2 + {}^{3}\!\log(4 x - 1)\)

1p

○

\(\text{ } = {}^{3}\!\log(3^{2}) + {}^{3}\!\log(4 x - 1)\)
\(\text{ } = {}^{3}\!\log(9) + {}^{3}\!\log(4 x - 1)\)

1p

○

\(\text{ } = {}^{3}\!\log(9 ⋅ (4 x - 1))\)
\(\text{ } = {}^{3}\!\log(36 x - 9)\)

1p

OptellenVermenigvuldigen
00kx - Logaritmen herleiden - 0ms - dynamic variables

Herleid tot één logaritme.

2p

\(5 ⋅ {}^{2}\!\log(p) + {}^{2}\!\log(4 p + 1)\)

○

\(5 ⋅ {}^{2}\!\log(p) + {}^{2}\!\log(4 p + 1)\)
\(\text{ } = {}^{2}\!\log(p^{5}) + {}^{2}\!\log(4 p + 1)\)

1p

○

\(\text{ } = {}^{2}\!\log(p^{5} ⋅ (4 p + 1))\)
\(\text{ } = {}^{2}\!\log(4 p^{6} + p^{5})\)

1p