Top answers

Integrate sinx*ln(cosx) with respect to x.

1. ʃ sinx*ln(cosx) dx First notice the composition ln(cosx). To make the expression easier to integrate we try substitution (substitution is often useful when trying to integrate expressions that are or incl...
DS
Answered by Darshan S. • Maths tutor
19405 Views

What are isotopes and how do they differ from each other?

An isotope is a different form of the same element. They differ from each other by the number of neutrons, however they have the same number of protons and electrons. This results in a different atomic mass....
HT
Answered by Hayden T. • Chemistry tutor
42010 Views

Calculate the percentage, by mass, of carbon in sodium hydrogencarbonate (NaHCO3)

When faced with this style of problem there are steps to correctly answer the quesion: Step 1 - identify the atomic mass of carbon Step 2 - calculate the atomic mass of the compound Step 3 - work out the per...
HT
Answered by Hayden T. • Chemistry tutor
43978 Views

How can we remember the difference between differentiation and integration?

Integration is the inverse of differentiation. I.e. for differentiation of linear expressions we multiply the coeifficient with the power of the unknown and then subract 1 from the power. Integration is the ...
MN
Answered by Madeha N. • Maths tutor
5434 Views

How do you tackle a Latin translation?

Top tips for tackling a translation: Before you begin, read through twice to try and get the gist of the text- ie, the characters, the plot etc Always carefully read the extract in English at the top- as thi...
KO
Answered by Katie O. • Latin tutor
10009 Views