
Trigonometrijos įvadas
Authored by E MM
Mathematics
9th Grade
Used 12+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Ką vadiname stačiojo trikampio smailiojo kampo sinusu?
Skaičius, kurį gauname padaliję prie smailiojo kampo esančio statinio ilgį iš įžambinės ilgio
Skaičius, kurį gauname padaliję prieš smailųjį kampą esančio statinio ilgį iš įžambinės ilgio
Skaičius, kurį gauname padaliję prieš smailųjį kampą esančio statinio ilgį iš kito statinio ilgio
Skaičius, kurį gauname padaliję prie smailiojo kampo esančio statinio ilgį iš kito statinio ilgio
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Remdamiesi brėžinyje pateiktais duomenimiis apskaičiuokite smailiojo kampo P reikšmę vienetų tikslumu
48
41
49
53
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Kokiu tikslumo turi būti suapvalintos apytikslės sinuso, kosinuso ir tangento reikšmės
0,1
0,01
0,001
0,0001
4.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Kokios yra pagrindinės trigonometrinės lygybės
sin2 α-cos2 α=1
sin2 α-cos2 α=0
sin2 α+cos2 α=1
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Naudodamiesi skaičiuotuvu apskaičiuokite smailiojo kampo M dydį 1⁰ tikslumu:
tg ∠M = 3,57
73⁰
6⁰
74⁰
75⁰
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Suprastinkite reiškinį
3 sin2α + 1 - cos2α
2sin2α
4
4sin2α
3sin2α
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
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