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Evaluate (1 + i)^12

First convert to mod-arg form in order to use de Moivre's theorem. |1 + i| = (1^2 + 1^2)^1/2 = 2^1/2 arg(z) is the angle made by the vector of the complex number and the positive real axis. I world recommend...
CL
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Describe the process of ventilation

Inspiration: -Diaphragm muscles contract, pulling the diaphragm downwards-External intercostal muscles contract pulling ribs upwards and outwards-Thoracic cavity increases in volume, causing pressure in lung...
IL
Answered by Izabelle L. • Biology tutor
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Evaluate and explain Plato's Theory of the Forms

The theory of the forms as proposed by Plato is a rationalist theory. This means that true knowledge is something which can be achieved through the use of reason. In the theory of the forms, Plato teaches th...
AM
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Given that x=3 is a solution to f(x)= 2x^3 - 8x^2 + 7x - 3 = 0, solve f(x)=0 completely.

As x=3 is a solution, (x - 3) is a factor of f(x) = 2x 3 - 8x 2 + 7x - 3 = 0 ie. 2x 3 - 8x 2 + 7x - 3 = (x - 3)(Ax 2 + Bx + C) where A,B,C are constants to be found. Expanding and then grouping terms by powe...
AS
Answered by Adrian S. • Maths tutor
8252 Views

Explain the role of B-lymphocytes and T-lymphocytes in the defence of the body against a virus infection

B-lymphocytes are involved in the humoral response and produce antibodies specific to the antigen. The antibodies bind to antigens and causes the virus to clump together/ agglutinate. T-lymphocytes are invol...
Answered by • Biology tutor
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