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23 questions
El coseno solo es positivo en los cuadrantes:
1-3
1-2
2-3
Ninguna de las anteriores
La cosecante es positiva en:
2-4
3-4
Calcular sen α\alphaα + cos α\alphaα
1517\frac{15}{17}1715
2317\frac{23}{17}1723
2417\frac{24}{17}1724
4
Calcular la tangente de α\alphaα
512\frac{5}{12}125
135\frac{13}{5}513
125\frac{12}{5}512
1312\frac{13}{12}1213
El cos de α\alphaα
35\frac{3}{5}53
45\frac{4}{5}54
34\frac{3}{4}43
43\frac{4}{3}34
Si cotθ=−43Si\ \cot\theta=\frac{-4}{3}Si cotθ=3−4 y cscθ<0\csc\theta<0cscθ<0 entonces senθ−cosθsecθ\frac{sen\theta-\cos\theta}{\sec\theta}secθsenθ−cosθ
−2528-\frac{25}{28}−2825
2528\frac{25}{28}2825
−2825-\frac{28}{25}−2528
2825\frac{28}{25}2528
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