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When is there agreement between the past participle and the direct object when using "avoir"

I think that the best way to understand this question is through two examples: 1) Les enfants ont perdu leurs jouets. 2) Les jouets qu'ils ont perdus étaient des cadeaux de Noël. Why in the second example do...
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Answered by Adrien D. • French tutor
2837 Views

What is Taylor Series

Technical Definition: A way to approximate (very) smooth functions (for which derivatives up to high orders exist and are continuous) Simple Definition: Taylor series is the infinite sum of all the terms for...
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Answered by Andrew C. • Maths tutor
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How is the diffusion of gases between the alveoli and the alveolar blood vessels facilitated?

Alveoli are small sacs at the end of the terminal branches of the lung (the brochioles). It is at the alveoli where gas exchange takes place - oxygen moves into the blood and carbon dioxide is removed. The b...
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Answered by Katy C. • Biology tutor
15058 Views

What is the difference between aerobic and anaerobic respiration?

Both aerobic and anaerobic respiration involve chemical reactions which take place in the cell to produce energy, which is needed for active processes. Aerobic respiration takes place in the mitochondria and...
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Answered by Katy C. • Science tutor
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Some videos I've made

Prerequisite for addition formula: https://www.youtube.com/watch?v=iHZmi2MHqWc Proof of formula for sin(A+B): https://www.youtube.com/watch?v=BEETggUVMrY Proof of formula for cos(A+B): https://www.youtube.co...
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Answered by Sam G. • Maths tutor
5665 Views