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Integration question

ImageUploadedByStudent Room1424754899.301234.jpg

Can anyone help me on question m?

It is find the integral using the given substitution.

Thanks a lot

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Reply 1

rayquaza17

Which question do you want help on and what have you done so far?

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Reply 2

brianeverit

Original post by pepperzealot

Can anyone help me on question m?

It is find the integral using the given substitution.

Thanks a lot

Posted from TSR Mobile

I think the question is telling you to use the wrong substitution. You need to use u^2=x-2

Reply 3

pepperzealot

Original post by rayquaza17

Which question do you want help on and what have you done so far?

Posted from TSR Mobile

I have substitute U into the function. But it is really complicated and I can not simplify it.

Reply 4

Kevin De Bruyne

I think there was a question very similar to this (perhaps identical) posted here not too long ago with a strange substitution and it didn't seem solvable that way at A-level.

Reply 5

pepperzealot

Original post by brianeverit

I think the question is telling you to use the wrong substitution. You need to use u^2=x-2

I have tried what you said.
But I still can not solve it. Is there any thing I did wrong? I have attached it
ImageUploadedByStudent Room1424767481.548624.jpg

ImageUploadedByStudent Room1424767481.548624.jpg

Posted from TSR Mobile

Reply 6

TeeEm

Original post by pepperzealot

I have tried what you said.
But I still can not solve it. Is there any thing I did wrong? I have attached it
ImageUploadedByStudent Room1424767481.548624.jpg

Posted from TSR Mobile

the last lump therefore integrates to arctan(...)