# Matematikk 1T




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link: book/tall/intro
link-type: doc
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**Tall**


^^^
$$
2 \in \mathbb{N}
$$

$$
a(b + c) = ab + ac
$$

$$
a = 2n - 1, \qfor n \in \mathbb{N}
$$
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link: book/lineære_funksjoner/intro
link-type: doc
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**Lineære funksjoner** 📈


^^^

$$
f(x) = ax + b
$$

$$
y - y_1 = a(x - x_1)
$$

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link: book/andregradsfunksjoner/intro
link-type: doc
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**Andregradsfunksjoner** 📈


^^^

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link: book/polynomer/intro
link-type: doc
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**Polynomer** 


^^^

$$
ax^3 + bx^2 + cx + d
$$

$$
(x - r)(ax^2 + px + q)
$$
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link: book/rasjonale_funksjoner/intro
link-type: doc
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**Rasjonale funksjoner** 


^^^

$$
f(x) = \dfrac{a(x - b)}{x - c}
$$

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$$
f(x) = \dfrac{P(x)}{Q(x)}
$$

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link: book/modellering/intro
link-type: doc
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**Modellering** 


^^^

$$
f(x) = a \cdot b^x
$$

$$
g(x) = a \cdot x^b
$$


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link: book/trigonometri/intro
link-type: doc
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**Trigonometri** 


^^^

\begin{align*}
    \sin v &= \dfrac{\mathrm{mot}}{\mathrm{hyp}} \\
    \cos v &= \dfrac{\mathrm{hos}}{\mathrm{hyp}} \\
    \tan v &= \dfrac{\mathrm{mot}}{\mathrm{hos}}
\end{align*}

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$$
T = \dfrac{1}{2} ab \sin C
$$

$$
\dfrac{\sin A}{a} = \dfrac{\sin B}{b} = \dfrac{\sin C}{c}
$$

$$
c^2 = a^2 + b^2 - 2ab\cos C
$$


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link: book/eksamensøving/intro
link-type: doc
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**Eksamensøving**
^^^
Tidligere eksamensoppgaver og heldagsprøver
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