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In our lives, we care particularly about a small, close group of people, and we seem to care about them for their own sake. It also seems that the value of such relationships is central to a good life; we...

You're right, when you first learn about matrix multiplication it definitely doesn't feel like the easiest way of defining a form of multiplication.  This is particularly true if you've just lear...

a i) a gene is a section of DNA that codes for a protein and has a specific location on a chromosome while an ellel is just a different form of a gene

ii) a recessive allele is one that is expresse...

To differentiate use formula.

multiply factor by power then minus one from power (where x is invloved)

dy/dx = 12x^3 - 24x^2

d^2y/dx^2 = 36x^2 - 48x (this is just a further differenti...

Let's use a general equation for straight lines, y= mx +c. Here, the m and c represent numbers (or constants), which will differ for each specific line. The number in the place of the m is the gradient of...