Егер tga+ctga=3 болса, tg2a+ctg2a=?

Нуркадан

Quiz
•
Mathematics
•
9th Grade
•
Hard
Nurka _
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
8
7
9
6
5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Теңсіздіктер жиынтығын шешіңіз:
Шешімі жоқ
(2;4)
(2;6)
(4;6)
(2;4)бірігу(4;6)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x4+5x2-36=0 теңдеуін шешіңіз
-3;3
-4;4
-2;2
-5;5
-1:1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A(-2;5) B(3;-1) нүктелері белірген. АВ кесіндісінің ортасының координаталарын табыңыз.
(0,5;2)
(2;3)
(0,5;1)
(1;2)
(2,5;3)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
a-ның қандай мәнінде 3x²-ax=0 теңдеуінің бір түбірі 1-ге тең болады.
3
2
1
5
4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Мүшелері оң геометриялық прогрессияның екінші мүшесі 6-ға, төртінші мүшесі 24-ке тең болса, 1-інші мүшесі нешеге тең?
3
6
2
5
4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x²-4x-12<0 теңсіздігін шешіңіз
x€ (-2;6)
x€(-3;4)
x€(-6;-2)
x€(-6;2)
x€(2;6)
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