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Passé Composé - 'Etre' or 'Avoir'?

In English, in the past tense, we use a combination of an auxillary verb and a main verb in the past participle form. In the example 'I have eaten', 'have' acts as the auxillary verb and 'eaten' is the past ...
RC
Answered by Rosie C. • French tutor
17335 Views

What is the chain rule, product rule and quotient rule and when do I use them?

The chain rule, product rule and quotient rule are all 3 methods of differentiating complex functions. Chain rule The chain rule is as follows: (dy/dx) = (dy/dz).(dz/dx) or D{f(g(x))}/dx = f'(g(x)).g'(x) The...
HK
Answered by Hakeem K. • Maths tutor
13477 Views

Why does the thickness of the heart's chamber walls vary?

A chamber wall's thickness is directly linked to its function. Each of the 4 chambers has a different function and so, they each have different wall thickness. The more work a chamber has to do, the thicker ...
TE
Answered by Tasnim E. • Biology tutor
55209 Views

What is the difference between structural isomers and stereoisomers?

Structural isomers have the same molecular formula but a different bonding arrangement, or connectivity, between these atoms. This leads to different physical and chemical properties between stereoisomers. A...
JN
Answered by James N. • Chemistry tutor
50361 Views

What is oxidative phosphorylation?

Oxidative phosphorylation is the metabolic pathway in which the mitochondria in cells use their structure, enzymes, and energy released by the oxidation of nutrients to reform ATP.
EM
Answered by Ernest M. • Biology tutor
5376 Views