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Solve the simultaneous equations: 3x − y = 23 2x + 3y = 8

Write the 2 equations above each other: 3x-y=23 2x+3y=8First we want to remove the y terms to be able to find out x, so multiply the top equation by 3 9x-3y=69 2x+3y=8Now that we have -3y on the top and -...

JB
Answered by Jessica B. Maths tutor
7527 Views

Differentiate y = x*cos(2x)

cos(2x) - 2x*sin(2x)

PM
2859 Views

n is an integer greater than 1. Prove algebraically that n^2 – 2 – (n – 2)^2 is always an even number.

1) Expand the brackets: (n-2)2 = (n-2)(n-2) = n2 - 2n - 2n +4 = n2 - 4n + 42) Substitute this into the original expression: n2...

JM
Answered by James M. Maths tutor
5358 Views

Why might expansionary demand side policies not always be effective in promoting economic growth?

Expansionary demand side policies focus on increasing Consumption and Investment within the economy. By increasing these components of real GDP, the economy will normally increase its' output and decrease...

CH
Answered by Charlie H. Economics tutor
1853 Views

How might you become more aware of how to perform your role in a naturalistic/ Stanislavskian way?

When performing in a naturalistic role, understanding your characters' motives are key. Stanislavski believed that actors should settle comfortably within the role that they are playing and consequently d...

CH
Answered by Charlie H. Drama tutor
2169 Views

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