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You use the genitive case to mark possession of something. It is a nice way to say that an object belongs to someone. There are some prepositions that trigger this case. In all cases you can use a simple ...

When we find dy/dx we find the gradient of the curve at (3,1). Start by differentiating the left hand side (LHS) like so.. (whiteboard). Remember every time we differentiate a y value we multiply by dy/dx...

Upon the death, retirement, resignation or impeachment of a US Supreme Court Justice, the President has the constitutional right to nominate a new justice. In doing so, they will consider ideological posi...

Copper is a metal, it therefore has delocalised electrons, i.e. e- which have come away from the atom, which can move through the solid metal allowing it to conduct heat and electricity. Other properties ...

This is to do with the definition of a transition metal (TM). A TM is a metal which loses electrons to form an ion with an incomplete D subshell. Scandiums most stable ion is a Sc3+ ion losing both the el...