Final test of the 10th Grade
How much is
What is the derivative of the function
Why is the function
always increasing when x is positive ?
Car sa derivée est toujours positive
Car elle est toujours positive
How much is the sum of all the whole even numbers from 1 to 1000 (use the sequences) ?
You play heads or tails with a coin. If the coin falls on tails you earn 2 euros, if it falls on heads you earn 3 euros. X is the random variable that shows the winning after you've tossed the coin. How much is X expected value?
The barycenter of the system
is situated :
in the triangle ABC
A outside of the triangle, near to the line (BC)
A outside of the triangle, near to the line (AB)
How much is the dot product of
The image M' of a point M by the homotethy which center is O and ratio -2 :
is on the half line [OM)
is on the segment [OM]
is on the line (OM).
The cartesian coordinates of a point M are x = 2 and y = 2 . What are its polar coordinates?