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The passé composé is always used once an action is completed. For example, when saying 'yesterday I went to school', you would use the passé composé - 'Hier, je suis allée au collège'. The imperfect tense is...

Pythagoras was a Greek philosopher who discovered that in a right angled triangle (triangle with one angle 90 degrees) the hypotenuse squared , c 2 , was equal to the sum of the other sides squared, a and b....

Here is a genuine probability question I once tackled: “In your sock drawer there are 6 blue socks, 2 red socks and 2 white socks , distributed so that the probability of picking each is equal. Without looki...

Once a month, following ripening, a single egg is released from a woman's ovaries during the menstrual cycle, with the hope of fertilisation. During the act of sexual reproduction, the father's sperm is depo...

Acceleration is defined as the rate of change of velocity. Since velocity is a vector quantity (it has both magnitude and direction) defined as speed in a particular direction, any change in either speed or ...