functions Flashcards

1
Q

rostoucí funkce

A

x < y -> f(x) < f(y) napr. x

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2
Q

klesajici funkce

A

x < y -> f(x) > f(y) napr. 1/x

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3
Q

neklesajici funkce

A

x < y -> f(x) <= f(y)

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4
Q

nerostouci funkce

A

x < y -> f(x) >= f(y)

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5
Q

neklesajici a nerostouci funkce

A

konstantni funkce

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6
Q

rostouci a klesajici

A

nejde okrem D(f) = jednobodovy pretoze neni splneny predpoklad

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7
Q

f je rostouci, 5f je

A

rostouci

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8
Q

f je rostouci, -3f je

A

klesajici

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9
Q

f je rostouci, |f| je

A

rostouci po f >= 0

klsajici po f <= 0

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10
Q

f je rostouci, f(na2) je

A

rostouci po f >= 0

klsajici po f <= 0

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11
Q

f je rostouci, 1/f je

A

klesajici po f > 0
klesajici po f < 0
(0 nie je def.)

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12
Q

soucet funkcii (klesajici, rostouci)

A

nemeni sa

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13
Q

skladani funkci (rostouci, klesajici)

A

rostouci o rostouci = rostouci
rostouci o klesajici = klesajici
klesajici o klesajici = rostouci

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14
Q

f1 o…..o fn (rostouci, klesajici)

A

sudy pocet klesajici = rostouci

lichy pocet klesajici = klesajici

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15
Q

definice sude funkce

A

f(x) = f(-x)

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16
Q

definice liche funkce

A

f(-x) = -f(x)

17
Q

f1 o…o fn = licha funkce <=>

A

vsetky fi jsou liche