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How do I form the present participle?

With regular verbs, forming the present participle requires three easy steps:Conjugate the verb into its 'nous' form, eg. jouer - jouons / finir - finissons / vendre - vendonsNow, remove this ending. This...

Answered by Eleanor P. • French tutor

1818 Views

Why is completing the square useful and how do you do it?

Completing the square is nice and easy. If you have an equasion of the form x²+ax+b=0 then simply rewrite the equasion in the form (x+a/2)²-(a/2)² +b=0. This may sound com...

Answered by Edward B. • Maths tutor

3279 Views

What should we listen out for in the unheard piece in the exam?

For the unheard essay question, you must try and repeat the unknown piece to one of your set works. The question will already outline certain categories to listen out for such as melody, harmony and textu...

Answered by Francesca C. • Music tutor

3392 Views

Let f(x) = 2x^3 − kx^2 + 2x − k. For what values of the real number k does the graph y = f(x) have two distinct real stationary points? (MAT 2017 q1.A)

A point a is a stationary point if and only if f'(a) = 0.
Let's compute the derivative:
f'(x) = (2x^3 − kx^2 + 2x − k)' = 6x^2 - 2kx + 2. (-k is a constant so it cancells out)
f'(x) = 0 i...

Answered by Jan G. • MAT tutor

5835 Views