Integration - The Basics

I have no idea what you are doing

The power needs to increase from -2 to -1

You need to divide by the new power

Also, in order to reverse the chain rule you need to divide by 2



Edit .... I see what you are doing ... You can not just differentiate something in a denominator and get that in the denominator ... You should know how to differentiate (2x+1)^(-1)



You may find it easier to write the integrand as (2x+1)^(-2) at the start

I have no idea what you are doing

The power needs to increase from -2 to -1

You need to divide by the new power

Also, in order to reverse the chain rule you need to divide by 2



Edit .... I see what you are doing ... You can not just differentiate something in a denominator and get that in the denominator ... You should know how to differentiate (2x+1)^(-1)



You may find it easier to write the integrand as (2x+1)^(-2) at the start

Thanks. I understand it now. I've just got one meow question regarding this: could I use ln to work this out?


Posted from TSR Mobile

In exams, would I be using the reverse chain rule more often than the given formulas for integration?


Posted from TSR Mobile

No



No

So I should start using the formulas from now?


Posted from TSR Mobile

I am not sure what you are asking

You said that I would be using integration formulas (the standards) in exams compared to the reverse chain rule. So should I start using the formulas when I'm practicing questions?


Posted from TSR Mobile

You use whatever the question needs .... In the exam you will have 2-4 integrations.

You need to practice all of the methods.