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Funkcije i derivacije

Authored by Katarina T

Mathematics

7th Grade

Used 9+ times

Funkcije i derivacije
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24 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Zadana je funkcija f(x)=log⁡(2+x−x2)f\left(x\right)=\log\left(2+x-x^2\right) . Područje njene definicije je:

〈−1,2〉〈-1,2〉

〈−2,1〉〈-2,1〉

〈−1,∞〉〈-1,∞〉

〈−∞,1〉〈-∞,1〉

2.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Nultočka funkcije f(x)=log⁡(2+x−x2)f\left(x\right)=\log\left(2+x-x^2\right) je

52\frac{\sqrt[]{5}}{2}

−52-\frac{\sqrt[]{5}}{2}

1−52\frac{1-\sqrt{5}}{2}

1+52\frac{1+\sqrt{5}}{2}

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Zadana je funkcija f(x)=log⁡(2+x−x2)f(x)=\log(2+x−x^2) . Koliko iznosi f(1)f\left(1\right) ?

(Rezultat je zaokružen na tri decimale)

0.103

3.013

0.301

0.031

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Zadana je funkcija f(x)=4x−3f\left(x\right)=4^x-3 . Što je slika te funkcije?

〈3,+∞〉〈3,+∞〉

〈−3,+∞〉〈-3,+∞〉

〈−∞,3〉〈-∞,3〉

〈−∞,−3〉〈-∞,-3〉

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Zadana je funkcija f(x)=4x−3f\left(x\right)=4^x-3 . Koliko rješenja ima jednadžba f(x)=−5f\left(x\right)=-5 ?

Jedno

Dva

Beskonačno mnogo

Nijedno

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Odredi derivaciju funkcije f(x)=4x−3f\left(x\right)=4^x-3 .

f′(x)=ln⁡4⋅4xf'\left(x\right)=\ln4\cdot4x

f′(x)=ln⁡4xf'\left(x\right)=\ln4^x

f′(x)=ln⁡4x⋅4f'\left(x\right)=\ln4^x\cdot4

f′(x)=ln⁡4⋅4xf'\left(x\right)=\ln4\cdot4^x

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Je li funkcija f(x)=sin⁡(x2)+cos⁡(2x)f\left(x\right)=\sin\left(\frac{x}{2}\right)+\cos\left(2x\right) parna ili neparna?

Parna

Neparna

Ni parna ni neparna

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