Όλα τα έργα
Adding like fractions
Πρόσθεσε τα παρακάτω κλάσματα:
$\frac28+\;\frac48=\;$
# Measurements & estimation
Training
5
Converting fractions into like fractions
Κάνε τα παρακάτω κλάσματα ομώνυμα.
α) $\frac32$
β) $\frac26$
γ) $\frac1{12}$
# Measurements & estimation
Training
5
Equivalent fractions
Φτιάξτε ένα ισοδύναμο κλάσμα του $\frac23$ πολλαπλασιάζοντας τον αριθμητή και τον παρονομαστή με το 2.
# Measurements & estimation
Learning
5
Juio Le Parc Serie 48 - 1970
In this series, the Argentinian Op'Art artist Juli Le Parc, uses his famous 14 color palette to let mathematics mix them in a fixed but rather randomly looking way. Let's investigate what is happening there!
# Sequences
Modeling
5
3D Pythagoras
Find out the distance, in $ cm$, between point $A$ and $ G$.
Give your answer with one decimal place.
# Pythagorean theorem
Training
8
[MOOC]Redução ao primeiro quadrante e fórmulas trigonométricas
Seja $\alpha \in \left [ \frac{\pi }{2}, \frac{3\pi }{2} \right ]$, tal que $sen\alpha =\frac{\sqrt{5}}{5}$
Determina o valor de $tg\left ( \pi +\alpha \right )\times cos\left ( \frac{11\pi }{2}+\alpha \right )+sen\left ( -\frac{\pi }{2}-\alpha \right )$. Apresenta o resultado arredondado às centésimas.
# Trigonometric functions
Reasoning
11