
goniometria
Authored by Tiziana Piga
Mathematics
9th - 12th Grade
Used 2+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Calcola il valore della funzione cosα sapendo che sinα= 1/3 e π/2<α<π
-2√2/3
-√2/3
√2/3
-2/3
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Calcola il valore della funzione sinα sapendo che cosα= 1/2 e α appartiene al IV quadrante
-√3/2
-√2/3
√3/2
2/3
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
La seguente identità è verificata?
(cotα - cosα)tanα= 1-sinα
NO
SÌ
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A quanto equivale la seguente espressione dopo le dovute semplificazioni?
cos(π+α) + sin^2 (-α) + tan (α+π)tan (α+π/2) + sin(π/2+α)
-cos α
-cos^2 (α)
sinαcosα
2sinα
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A quanto equivale la seguente espressione dopo le dovute semplificazioni?
sinπ/3 + sinπ + cosπ/3 + sinπ/6 - cosπ/6
0
1
-1
1/2
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A quanto equivale la seguente espressione dopo le dovute semplificazioni?
4sinπ/2 -3( sinπ/6+ cosπ/3) -2sinπ/3 + cosπ
√3
-√2
-√3
√2
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