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In genetics, traits such as eye colour, sex and skin colour are carried in genes. Taking eye colour as an example, you will have a gene located somewhere within a chromosome encoding for eye colour. This ...

Accentuation works by following a set of rules which varies according to which syllable is the strong one when you prounounce it. There are three types of classification. The first one is called "Esd...

In French, to talk in the past about an event, a precise action (that didn't last), we use the perfect tense. It is basically formed using two components : an auxiliary verb and a past participle. There a...

Let f(x)=x^n+a_(n-1)x^(n-1)+...+a_0 with n>=2 and a_i an integer have a rational root x=p/q.

Consider q^(n-1)f(p/q).

q^(n-1)f(p/q)=p^n/q+a_(n-1)p^(n-1)+...+a_0q^(n-1)=0

==> a_(n...

tanx = sinx/cosx. Express this as: sinx*(cosx)^-1. Remembering the product rule: "y = f(x)g(x), dy/dx = f'(x)g(x) + f(x)g'(x)". sinx differentiates to cosx and cosx differentiates to -sinx. Also...