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What is comparative advantage?

Comparative advantage is when a firm or country can produce a good at a lower opportunity cost than another firm or country. Opportunity cost refers to the value forgone when alternative is chosen. By cou...

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Answered by Talia S. Economics tutor
3906 Views

Calculate the derivative of x^x

This problem is best solved using implicit differentiation and by tackling each side of the equation individually. First write down the problem as "y = x^x". Recalling that log rules can be used...

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Answered by George H. Maths tutor
4006 Views

A bullet is fired horizontally from a gun at a height of 1.5m at 280m/s. Calculate the time taken for it to hit the ground. A second bullet is fired from an adjacent gun at 370m/s. Calculate the distance it travel before the first bullet hits the ground.

Time for first bullet to hit ground: s = -1.5m, u = 0ms-1, v = ?, a = -9.81ms-2, t = ?.s = ut + 1/2(at2)-1.5 = 0 + 1/2(-9.81t2)9.81t2= 1.52 ...

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Answered by Ayush N. Physics tutor
4105 Views

Differentiate x = sinhy with respect to x

x = sinhy=> dx/dy = coshycosh2y - sinh2y = 1=> sqrt(1 + sinh2y) = coshythus dx/dy = sqrt(1 + sinh2y)and dy/dx = 1/sqrt(1 + sinh2y)hence dy/dx =...

AN
3064 Views

Given that α= 1+3i is a root of the equation z^3 - pz^2 + 18z - q = 0 where p and q are real, find the other roots, then p and q.

All coefficients of z are real, therefore one root must be the complex conjugate so β = 1-3i.It is known that Σαβ = 18 (the coefficient of z), so we can get an equation in the third root, γ, as follows: Σ...

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4720 Views

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