Soddalashtiring. sin(π/2 + α) cos(π/2 − β) + sin(α−β)
Algebra 3-chsb

Quiz
•
Mathematics
•
9th Grade
•
Hard
Elyor Mavlonov
Used 6+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 4 pts
sinαcosβ
sinβcosα
sinαsinβ
cosαcosβ
2.
MULTIPLE CHOICE QUESTION
3 mins • 4 pts
tgα=−7/24 va π/2<α<π boʻlsa, sin2α ni hisoblang.
336/625
−336/625
−121/125
121/125
3.
MULTIPLE CHOICE QUESTION
3 mins • 4 pts
cosα=−0,6 va π<α<3π/2 boʻlsa, tg2α ni hisoblang.
−24/7
24/7
7/24
-7/24
4.
MULTIPLE CHOICE QUESTION
3 mins • 4 pts
Ifodani soddalashtiring: (sin(π−4α) + cos(π/2 + 2α)) /(sin(3π/2 − 2α) − cos(3π + 4α))
ctgα
−ctg3α
−ctgα
ctg3α
5.
MULTIPLE CHOICE QUESTION
3 mins • 4 pts
Ifodani soddalashtiring: (1−sinα−cos2α)/(cosα−sin2α)
−ctgα
tgα
−tgα
ctgα
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Arifmetik progressiyada a₅=41 va a₁₀=26. Bu progressiya 21-hadini toping.
−7
7
−4
−10
7.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Arifmetik progressiya aₙ=20−4n formula bilan berilgan. Bu progressiya dastlabki n ta hadi yigʻindisini toping.
18n−4n²
18n−2n²
20n−2n²
20n−4n²
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