matematika (polinomska enačba, racionalna funkcija, stožnice) Flashcards

1
Q

racionalna funkcija

A

f(x) = p(x) / q(x)

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2
Q

vedenje racionalne funkcije v neskončnosti

A

AnXn / BmXm

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3
Q

asimptota za n < m

A

vodoravna y = 0

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4
Q

asimptota za n = m

A

y = An / Bm

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5
Q

presečišča z asimptoto za n = m in n > m

A

p(x) / q(x) , r(x) ničle so presečišča, če v r(x) ni x-ov potem ni presečišč

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6
Q

asimptota za n > m

A

y = k(x)

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7
Q

kateri primer racionalne funkcije ima poševno asimptoto?

A

n > m

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8
Q

na kaj moreš pazit pri racionalnih enačbah?

A

da v imenovalcu ni 0

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9
Q

reševanje racionalne neenačbe

A

vsi ulomki na eno stran

vse damo na skupni imenovalec da dobimo en ulomek

poiščemo ničle, pole, predznak

rešitev je interval

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10
Q

krožnica v središčni legi

A

x^2 + y^2 = r^2

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11
Q

krožnica v premaknjeni legi

A

(x-p)^2 + (y-q)^2 = r^2

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12
Q

kak razstaviš stožnico na funkcije?

A

izpostaviš y (OBE OPCIJI ZA KVADRAT!!)

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13
Q

elipsa v središčni legi

A

x^2 / a^2 + y^2 / b^2 = 1

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14
Q

elipsa v premaknjeni legi

A

(x-p)^2 / a^2 + (y-q)^2 / b^2 = 1

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15
Q

hiperbola v središčni legi

A

x^2 / a^2 - y^2 / b^2 = 1 ali -1

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16
Q

hiperbola v premaknjeni legi

A

(x-p)^2 / a^2 - (y-q)^2 / b^2 = 1 ali -1

17
Q

parabola središče namesto (p, q)

A

(t, q)

18
Q

parabola v središčni legi

A

y^2 = 2px

19
Q

parabola v premaknjeni legi

A

(y-q)^2 = 2p (x-t)

20
Q

kak zračunaš numerično ekscentričnost za elipso ali hiperbolo?

A

linearno ekscentričnost deliš z a/b (z večjim pri elipsi ali realnim pri hiperboli)

21
Q

kak zračunaš linearno ekscentričnost za elipso?

A

e^2 = a^2 - b^2

e^2 = b^2 - a^2

22
Q

razdalja od S do F

A

e

23
Q

linearna ekscentričnost za hiperbolo

A

vedno e^2 = a^2 + b^2

24
Q

hiperbola asimptoti

A

y = + ali - b/a x

25
Q
A