
test 9-klass
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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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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