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Trigonometrija pravokutnog trokuta

Authored by Andrija Koncani

Mathematics

9th Grade

Used 3+ times

Trigonometrija pravokutnog trokuta
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Sinus kuta  ω\omega  je?

 ed\frac{e}{d}  

 de\frac{d}{e}  

 fe\frac{f}{e}  

 de\frac{d}{e}  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Tagens kuta  δ\delta  je?

 ed\frac{e}{d}  

 df\frac{d}{f}  

 fe\frac{f}{e}  

 de\frac{d}{e}  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Izračunaj kosinus kuta od 25°32'51''. Zaokruži na četiri decimale.

0.9022

0.9023

0.4562

0.2411

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Izračunaj kut  α\alpha  ako je  sin(α)=0.356\sin\left(\alpha\right)=0.356  .

20°51'17''

20°51'16''

20°51'18''

20°51'15''

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Izračunaj nepoznatu stranicu u pravokutnom trokutu ako je  a=5, sinα=35, b=?.a=5,\ \sin\alpha=\frac{3}{5},\ b=?.  

 183\frac{18}{3}  

 253\frac{25}{3}  

 163\frac{16}{3}  

 203\frac{20}{3}  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Odredi vrijednost izraza  sin30°1sin30°+1.\frac{\sin30°-1}{\sin30°+1}.  

 23\frac{2}{3}  

 23-\frac{2}{3}  

 13\frac{1}{3}  

 13-\frac{1}{3}  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Odredi vrijednost izraza   1cos45°1+cos45°\frac{1-\cos45°}{1+\cos45°}  .

 3223-2\sqrt{2}  

 3+223+2\sqrt{2}  

 2+322+3\sqrt{2}  

 2322-3\sqrt{2}  

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