test 9-klass

test 9-klass

Assessment

Flashcard

Mathematics

9th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

Vektor a(-3;4) ga perpendekulyar bolgan birlik vektor koordinatalarini tabin.

Back

(4/5;3/5) yoki (-4/5;-3/5)

2.

FLASHCARD QUESTION

Front

tga=sqrt(5) bolsa sin2a ni tabin.

Back

sin2a = sqrt(5)/3

3.

FLASHCARD QUESTION

Front

a(1;4) va b(-3;1) vektorlari uchun skalyar ko'beyishni tabin.

Back

1

4.

FLASHCARD QUESTION

Front

Sanlardı ósiw tártibinde jazıń: a=sin(1,57), b=cos(1,57), c=sin(3).

Back

b < c < a

5.

FLASHCARD QUESTION

Front

sina=0,6 bolsa tg2a ni tabin 0 < a < 90*.

Back

tg2a = 7/24

6.

FLASHCARD QUESTION

Front

Birlik vektor nima?

Back

Birlik vektor - uzunligi 1 bo'lgan vektor.

7.

FLASHCARD QUESTION

Front

Vektorlar orasidagi perpendikulyarlik sharti qanday?

Back

Ikki vektor perpendikulyar bo'lsa, ularning skalyar ko'paytmasi 0 ga teng.

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