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How significant was the role of the secret police in maintaining communist control in the years 1917-85?

This question is a breadth question asking a student to assess changing significance of aspects of communist control. Secret police is the example given in the question and therefore must be used. Other fact...
TK
Answered by Tom K. • History tutor
11411 Views

Integrate ∫sin²xcosxdx

This indefinite integral (has no defined limits) should be evaluated by integration by substitution This is because you cannot integrate sin 2 xWhen doing integration by substitution, the first thing we need...
RK
Answered by Rachel K. • Maths tutor
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Explore the ways that parent-child relationships are used in William Shakespeare's Hamlet.

Begin by determining: what are the major parent-child relationships within the text? Student might answer: Hamlet and the Ghost Hamlet and Gertrude Ophelia and Polonius Laertes and Polonius Continue by worki...
SJ
4886 Views

Integrate sec^2(x)tan(X)dx

This can be done with integration by substitution. If we let u=tanx then du/dx=sec^2(X). If we substitute U into the integrand we get it being u(sec^2(X))dx. rearranging the du/dx equation to make dx the sub...
AZ
Answered by Amin Z. • Maths tutor
27830 Views

Describe a simple food chain and the trophic levels within it

Grass -> rabbit -> Fox -> Crow -> Bacteria + FungiGrass = producer - first trophic level, uses photosynthesis to convert carbon dioxide and water to glucose Rabbit = primary consumer - second tro...
AC
Answered by Ashley C. • Biology tutor
4180 Views