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Using substitution, integrate x(2 + x))^1/2 where u^2 = 2 + x

u2 = 2 + xx = u2 - 2dx/du = 2u
ʃ x(2 + x))1/2 dx= ʃ xu dx= ʃ u(u2 - 2) dx= ʃ 2u2 (u2 - 2) du= ʃ 2u4 - 4u2 du= [...

SP
Answered by Sonali P. Maths tutor
4248 Views

How do I make my answers and essays more A-level standard?

The main difference between GCSE and A-level is the structuring of your essays and the sophistication in which you approach your answers. Instead of giving, for example a for and against answer to a yes o...

KP
Answered by Kate P. History tutor
1959 Views

Explain the link between multiculturalism and liberalism.

Firstly, one major link between the two would be their shared support for toleration, a central theme to both ideologies. Tolerance can loosely be interpreted as the acceptance of different, and often con...

JM
4501 Views

Name one benefit to companies that have a flat management structure.

One benefit that businesses have from having a flat management structure is that it is less likely to have communication issues. This is due to the reason that flat management structures normally have bet...

OA
1899 Views

Explain why when placed in distilled water a red blood cell would burst but a plant epidermis cell would not

The cytoplasm of both cells has a higher osmolarity/ lower water potential than the distilled water, this causes water to enter the cells via osmosis along the water gradient. The red blood cell is surrou...

KW
Answered by Kelvin W. Biology tutor
24249 Views

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