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Find the shortest distance between the lines r = (1, 5, 6) + y(-2, -1, 0) and r = (1, 7, -3) + z(2, 0, 4)

Vector joining the two lines = (1, 5, 6) - (1, 7, -3) = (0, -2, 9)Normal vector to the two lines = (-2, -1, 0) x (2, 0, 4) = (-4, 8, 2) = 2(-2, 4, 1)Hence, using the dot product, shortest distance = (0, -2, ...
AH
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“The Americans and British initiated all the formal steps towards separation.” Evaluate the strengths and limitations of this quote on the division of Germany.

The interpretation is blaming the Western allies for the division by stating that they produced all of the actual policies which separated East and West Germany, causing them to not be unified until 1991. Th...
AN
Answered by Alice N. • History tutor
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What is demand pull inflation?

Inflation is a sustained increase in the average price level in a given time period. Demand pull inflation refers to the economic scenario in which there is an increase in aggregate demand. This increase can...
DR
Answered by Demi R. • Economics tutor
4606 Views

What are the key elements I need to discuss in my literature analysis?

It is generally a good technique to structure one's analysis through a few central themes in the piece of literature being analysed. Once these have been identified it is important to highlight the presence ...
IM
4067 Views

Describe the process of phagocytosis

When a phagocyte recognises the antigens on a pathogen, it engulfs the pathogen. The pathogen becomes contained in a phagocytic vacuole. A lysosome fuses with the phagocytic vacuole and digestive enzymes (ly...
HL
Answered by Heather L. • Biology tutor
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