umm what
Banned
is that right???
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Yep, that's right. BTW, your writing is amazing![]()
change one of the cos^2 x to 1-sin^2x, and let u=sinx
Nope, that's wrong. For future, just check your answers on the website I posted. For a question like yours, type in something like "integrate from 0 to ln2 (x)e^(-x)View attachment 24971
Is this right?
You have to put the bounds around the first part as well - the whole answer should be numerical instead of algebraic.View attachment 24971
Is this right?
u will have a simple substitution, du=cosxdx. which will leave the integral of u^3-u^5.i did....dunno how to work it outt
same shit different smell, test the derivative of your answer to see if its correct
About this, in a test, how many lines would you recommend doing it in. Do you think markers wouldn't like it in just one line or is that fine?You do indeed have very nice handwriting.
A tip:
Try to avoid the U substitution for simple questions like this. You could have actually done it all in one go (ie: From question to answer in 1 line) by recognising that you need to split it, then having a log and an inverse tan for the integral, then fixing up the constants (which is just half).
You do indeed have very nice handwriting.
A tip:
Try to avoid the U substitution for simple questions like this. You could have actually done it all in one go (ie: From question to answer in 1 line) by recognising that you need to split it, then having a log and an inverse tan for the integral, then fixing up the constants (which is just half).