Search over 10,000 free study notes

While both 'ser' and 'estar' mean 'to be' in English, there are some crucial differences between both verbs which are essential to get right at any level of Spanish. There are certain 'rules of thumb' tha...

The first step is deciding on the method of integration. For this integral it makes the most sense to use substitution.Let u = x² + 1Differentiate w.r.t x => du/dx = 2xRearrange for dx=> ...

Your personal statement should give the reader an idea of your experiences and motivations and how these have shaped you and, finally, how the course you are applying for will bring forth that which is wi...

Integrate by parts:u = ln(x) u' = 1/x v' = 1 v = xBy parts formula: uv - ∫u'v dx Therefore we have: xln(x) - ∫x1/x dx = xln(x) - ∫1 dx = xln(x) - x (+c)

Cobalt and Nickel