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11-12kl B Trigonometrija

Authored by Darius Agintas

Mathematics

11th Grade

Used 2+ times

11-12kl B Trigonometrija
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Kuriam ketvirčiui priklauso kampas -300 laipsnių?

I

II

III

IV

2.

MULTIPLE SELECT QUESTION

1 min • 2 pts

Kuriam ar kuriems koordinačių plokštumos OXY ketvirčiams priklauso kampas β\beta , jei cos β\beta >0

I

II

III

IV

3.

FILL IN THE BLANKS QUESTION

3 mins • 3 pts

Jei sin⁡α=32\sin\alpha=\frac{\sqrt[]{3}}{2} , ir kampas yra II ketvirtyje, tai cos⁡α=?\cos\alpha=?

(a)  

4.

FILL IN THE BLANKS QUESTION

2 mins • 2 pts

Trikampio kraštinių ilgiai ilgiai yra 3cm ir 8cm, o kampas tarp jų lygus 60 laipsnių. Koks šio trikampio plotas? Suapvalinti dešimtųjų tikslumu

(a)  

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Kuri lygybė vaizduoja teisingą Sinusų teoremą

asin⁡α=bsin⁡c\frac{a}{\sin\alpha}\text{}=\frac{b}{\sin c}

asin⁡α=sin⁡a\frac{a}{\sin\alpha}\text{}=\sin a

sin⁡aα=bsin⁡b\frac{\sin a}{\alpha}=\frac{b}{\sin b}

bsin⁡B=csin⁡C\frac{b}{\sin B}=\frac{c}{\sin C}

6.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

Media Image

nustatyti sin⁡α\sin\alpha reikšmę

(a)  

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Kuriuo atveju pavaizduotas centrinis kampas?

a

b

c

d

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