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How do you integrate ln(x)?

Tricky. Definitely can't do it by inspection (we don't know any fuction that just differentaties to ln(x)), it's not like we've really got anything to substitute u for if we wanted to do it by substitution a...
RG
Answered by Ross G. • Maths tutor
104846 Views

Solve dy/dx= (x√(x^2+3))/e^2y given that y=0 when x=1, giving your answer in the form y = f(x)

The first thing we notice is that this differential equation is seperable, meaning we can get all of our y's on the left with a dy and all of our x's on the right with a dx. Doing this by multiplying both si...
RG
Answered by Ross G. • Maths tutor
13361 Views

Possessive adjectives

Possessive adjectives are used to show ownership or possession. For example: when you say 'this is my pen' - 'my' is a possesive adjective. In Italian, the adjective shows gender and number, and always agree...
CD
Answered by Capucine D. • Italian tutor
4977 Views

Why do you say 'penso che sia...?'

In Italian, the subjunctive ( congiuntivo ) is used after certain verbs that express:1. an opinion/doubt ( penso che , credo che , suppongo che )2. a wish/order ( voglio che , insisto che , desidero che )3. ...
CD
Answered by Capucine D. • Italian tutor
17561 Views

What makes a good introductory paragraph in essays?

The way you lay out your introductory paragraph largely depends on what your task is. For example, if you have thirty minutes to write a comparative essay, your introduction is going to much briefer and in a...
EP
Answered by Elizabeth P. • English tutor
6197 Views