Matek 1 Egyenletek (SPEEDRUN (Kinda basic)) Flashcards

1
Q

Mi a vektor összeadás, kivonás és skarális szorzata?
A + B
A - B
< a,b>

A

a + b = a1 + b1, a2 + b2, a3 + b3
a - b = a1 - b1, a2 - b2, a3 - b3
< a,b > = a1 * b1 + a2 * b2 + a3* b3

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2
Q

Mi a vektoriális szorzat egyenlete?
A X B

A

i j k
A1 A2 A3
B1 B2 B3
i = A2 * B3 - B2 * A3
j = (A1 * B3 - B1 * A3) * -1
k = A1 * B2 - B1 * A2

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3
Q

Egy vektor szakasza
AB

A

B1 - A1; B2 - A2; B3 - A3

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4
Q

Egy vektor hossza?
||AB||

A

Gyök alatt(AB1^2 + AB2^2 + AB3^2)

^ = hatványozás

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5
Q

Cos alfa egyenlete?

A

Cos alfa =
<AB, AC>
————————|
||AB|| * ||AC||

———| = Osztás vonal

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6
Q

Paraleipedon egyenlete

A

< a x b, c >

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7
Q

Tetraéder egyenlete

A

< a x b, c >
—————|
6

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8
Q

Egysikú-e egy 4 pont között?
A B C és D pontod van

A

< AB X AC, AD >

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9
Q

Sik egyenlete

Nincs hosszú i-m :(

A

n1x + n2y + n3z = n1x0 + n2y0 + n3z0

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10
Q

Egyenes egyenlete (Paraméteres)

A

x = x0 + tv1
y = y0 + tv2
z = z0 + tv3

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11
Q

Paraméter nélküli egyenes egyenlet

A

X + X0
——–|
v1

És ugyan ez y és z-vel.
De a vektor v2 + v3

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12
Q

Trigonometrikus alak

A

r(cos fi + isin fi)

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13
Q

r képlete

A

Gyök alatt(a^2 + b^2)

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14
Q

Tan fi * képlete

A

Abszolút(b/a)

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15
Q

Sik negyedek

A

1 SN = A +|B+ = Fi = Fi*
2 SN = A - | B + = Fi = 180fok - Fi*
3 SN = A - | B - = Fi = 180fok + Fi*
4 SN = A+ | B - = Fi = 360fok - Fi*

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16
Q

i hatványozás

A

i^1 = i
i^2 = -1
i^3 = -i
i^4 = 1

17
Q

Pont és egyenes távolsága

A

Dp,e =
||PeP X v||
————|
||v||

18
Q

Pont és sik távolsága

A

Dp,s =
||PsP|| * |cosfi|
Dp,s =
|< PsP; n >|
——————-|
||n||