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For a curve of equation 2ye^-3x -x = 4, find dy/dx

here the student needs to use both implicit differentiation and the product rule. I would differentiate term by term for this problem. for 2ye^-3x you have to use the proudct rule. uv differentiates to uv' +...
JB
Answered by Jack B. • Maths tutor
4503 Views

How do I know when to use the passé composé as opposed to the imparfait?

The passé composé is used when talking about completed actions in the past. E.g. "Un chien a couru devant moi". The imparfait is used when talking about continuous actions in the past, or as a desc...
TB
Answered by Tabitha B. • French tutor
2654 Views

How do I improve my essay marks when analysing a text?

Firstly, it is important to remember the key terms of the question. It may be helpful to highlight or underline them when reading the question for the first time. You should make sure to focus on all the key...
RK
4381 Views

When do you use 'avoir' and 'être' when using 'Le passé composé'?

To form 'le passé composé' (the perfect tense), you need to use an auxiliary verb which is either avoir or être plus the past participle. Avoir is usually used but when the verb is a verb of motion or a refl...
AH
Answered by Amelia H. • French tutor
3540 Views

How do I factorise a quadratic equation?

A quadratic equation is one that takes the form.. ax 2 + bx +c = 0 Factorising an equation like this involves putting the equation into two brackets. The method varies slightly dependent on whether a = 1 or ...
BE
Answered by Beth E. • Maths tutor
4187 Views