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How do I conjugate the perfect tense?

In French, the perfect tense is a past tense. It translates to 'I did' or 'I have done'. It is formed by using not one, but two verbs.

Perfect tense = subject + auxilary verb + past participle

Answered by Harriet J. • French tutor

3482 Views

Show that (n^2) + (n+1)^2 + (n+2)^2 = 3n^2 + 6n + 5, Hence show that the sum of 3 consecutive square numbers is always 2 away from a multiple of 3.

Expanding out the Brackets: (n²)+ (n² + n + n + 1) + (n² + 2n + 2n +4) = (n²) + (n²+2n+1) + (n²+4n+4) =3n² + 6n +5 Using this r...

Answered by James C. • Further Mathematics tutor

3324 Views

Solve the pair of simultaneous equations; (1) y + 4x + 1 = 0, (2) y^2 + 5x^2 + 2x = 0 .

Rearrage equation (1) to make y the subject of the formula. This gives y = -4x -1 .

Substitute this value of y into equation (2). This gives (-4x -1)^2 +5x^2 +2x = 0 .

Expanding out the bra...

Answered by Melanie G. • Maths tutor

7303 Views

Outline Descartes’ ‘evil demon’ argument and explain what he says about knowledge of the self.

In the First Meditations, Descartes aims to determine which of his many beliefs amount to knowledge. Descartes argues that if there is any doubt regarding the truth of a proposition, one does not know tha...

Answered by Angie O. • Philosophy tutor

141401 Views

Equilibrium of supply and demand

graph explanation, look at excess supply and excess demand, how increasing demand will lead to an increase in price and an increase in supply will lead to a decrease of the price. This will always converg...

Answered by Alex B. • Economics tutor

3236 Views