cos ⁡ x ctg ⁡ x + t g x ⋅ cos ⁡ x \frac{\cos x}{\operatorname{ctg}x}+tgx\cdot\cos x c t g x cos x + t g x ⋅ cos x Uprosti izraz:

ctg ⁡ x \operatorname{ctg}x c t g x

Trigiometrija- I razred IT

Authored by Desa Ilić

Mathematics

9th Grade

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Odredi dužinu x na slici

4,5

7,42

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Odrediti dužinu hipotenuze na slici

4,19

3,9

5,3

4,91

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Odrediti dužinu stranice x na slici

7,5

13,23

12,4

9,81

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Ako je $\sin\alpha=\frac{7}{25}$ odredi $tg\alpha$ .

$\frac{24}{25}$

$\frac{7}{25}$

$\frac{7}{24}$

$\frac{24}{7}$

MULTIPLE CHOICE QUESTION

1 min • 1 pt

$\frac{\cos x}{\operatorname{ctg}x}+tgx\cdot\cos x$
Uprosti izraz:

$\operatorname{ctg}x$

$2\cos x$

$\cos\ x$

$2\sin x$

MULTIPLE CHOICE QUESTION

1 min • 1 pt

$Uprosti\ izraz:\sin^3x+\sin x\cdot\cos x$

$\sin x$

$\sin^2x$

$\cos^2x$

$2\ \cos x$

MULTIPLE CHOICE QUESTION

1 min • 1 pt

$\left(\sin x+\cos x\right)^2+\left(\sin x-\cos x\right)^2$
Uprosti izraz:

$2\sin x\cos x$

$2\sin x$

$2\cos x$

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Trigiometrija- I razred IT

Odredi dužinu x na slici

Odrediti dužinu hipotenuze na slici

Odrediti dužinu stranice x na slici

Ako je sin⁡α=725\sin\alpha=\frac{7}{25}sinα=257​ odredi tgαtg\alphatgα .

cos⁡xctg⁡x+tgx⋅cos⁡x\frac{\cos x}{\operatorname{ctg}x}+tgx\cdot\cos xctgxcosx​+tgx⋅cosx Uprosti izraz:

Uprosti izraz:sin⁡3x+sin⁡x⋅cos⁡xUprosti\ izraz:\sin^3x+\sin x\cdot\cos xUprosti izraz:sin3x+sinx⋅cosx

(sin⁡x+cos⁡x)2+(sin⁡x−cos⁡x)2\left(\sin x+\cos x\right)^2+\left(\sin x-\cos x\right)^2(sinx+cosx)2+(sinx−cosx)2 Uprosti izraz:

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Ako je $\sin\alpha=\frac{7}{25}$ odredi $tg\alpha$ .

$\frac{\cos x}{\operatorname{ctg}x}+tgx\cdot\cos x$
Uprosti izraz:

$Uprosti\ izraz:\sin^3x+\sin x\cdot\cos x$

$\left(\sin x+\cos x\right)^2+\left(\sin x-\cos x\right)^2$
Uprosti izraz: