Eenheidscirkel en radialen
Bereken. Rond zo nodig af op 2 decimalen.
1p
\(\sin(0)\)
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\(\sin(0) = 0 ≈ 0{,}00\)
1p
Bereken. Rond zo nodig af op 2 decimalen.
1p
\(\cos(2 \pi )\)
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\(\cos(2 \pi ) = 1\)
1p
Reken om. Rond zo nodig af op 2 decimalen.
1p
\(200\degree = \text{......} \text{ } \text{rad}\)
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\(200\degree = {200 \over 180} ⋅ \pi ≈ 3{,}49 \text{ } \text{rad}\)
1p
Reken om. Rond zo nodig af op 2 decimalen.
1p
\(-900\degree = \text{......} \text{ } \text{rad}\)
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\(-900\degree = {-900 \over 180} ⋅ \pi = -5 \pi \text{ } \text{rad}\)
1p
Bereken. Rond zo nodig af op 2 decimalen.
1p
\(\cos(x) = -0{,}68\)
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\(x = \cos^{-1}(-0{,}68) = 2{,}31855... ≈ 2{,}32\)
1p
Bereken op \([0 , 2 \pi ] \text{.}\) Rond zo nodig af op 2 decimalen.
1p
\(\sin(x) = \frac{1}{2} \sqrt{3}\)
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\(x = \frac{1}{3} \pi ∨ x = \frac{2}{3} \pi \)
1p
Reken om. Rond zo nodig af op 2 decimalen.
1p
\(\frac{1}{4} \text{ } \text{rad} = \text{......} \text{ } \text{graden}\)
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\(\frac{1}{4} \text{ } \text{rad} = {\frac{1}{4} \over \pi } ⋅ 180 ≈ 14{,}32\degree\)
1p
Reken om. Rond zo nodig af op 2 decimalen.
1p
\(\frac{1}{4} \pi \text{ } \text{rad} = \text{......} \text{ } \text{graden}\)
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\(\frac{1}{4} \pi \text{ } \text{rad} = {\frac{1}{4} \pi \over \pi } ⋅ 180 = 45\degree\)
1p