Search over 10,000 free study notes

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 -...

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

Answering this question requires knowledge of the logarithm rules. Mainly how to manipulate logarithms.Firstly, notice that the multiplication in front of log_6(27) can be moved to be the power of the 27....

In an A-level psychology class, one of the main focuses is teaching students to evaluate the models they are presented with. This can be difficult as up until A-level students are presented with any scien...

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...