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When does a past participle have to agree with other parts of the sentence?

Past participles are interesting because they are used in several different ways. The most important of these is in the passé composé, but you can also find them behaving as adjectives. Le garçon est perdu. ...
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Answered by Ewan R. • French tutor
2444 Views

Show, by counter-example, that the statement "If cos(a) = cos(b) then sin(a) = sin(b)" is false.

Let a=60 and b=300. Then cos(a)=cos(60)=0.5 and cos(b)=cos(300)=0.5, therefore cos(a)=cos(b). Then sin(a)=sin(60)=sqrt(3)/2 and sin(b)=sin(300)=-sqrt(3)/2, therefore sin(a)=sin(b) is incorrect. Therefore we ...
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Answered by Osian G. • Maths tutor
5017 Views

Differentiate y(x)=x^2 + 2x + 1, find the turning point and classify it as minimum or maximum.

dy/dx=2x + 2 Turning point is where dy/dx=0, so when x = -1 When x=-1, y=0. d^2y/dx^2=2 > 0 therefore minimum.
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Answered by John F. • Maths tutor
4666 Views

Describe the process of synaptic transmission

Information is passed down the axon of the neuron through electrical impulses known as an action potential. When a neuron is in resting state, the inside of the cell is negatively charged compared to the out...
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Answered by Sam N. • Psychology tutor
7462 Views

Outline the process of mitosis

Meiosis is the process of cell division that produces two identical diploid cells, and consists of four stages. The first stage is called prophase, where the chromosomes condense and cross over to form bival...
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Answered by Anastasia R. • Biology tutor
6039 Views