Hey, i was wondering if anyone could help me with this question: integrate: 4x^3 exp(2x^4) i know what the answer is but i really dont understand how to do the question as apparently, it doesnt involve any integration at all!!! Thanks
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Originally Posted by curlywurlysqurly Hey, i was wondering if anyone could help me with this question: integrate: 4x^3 exp(2x^4) i know what the answer is but i really dont understand how to do the question as apparently, it doesnt involve any integration at all!!! Thanks a simple substitution of will do can you proceed?
sorry, no! i still dont understand. I was told to differentiate the (2x^4) and then put the whole thing over the (8x^3), it then simplifies, and you dont do any integration.
Just let: Make the subs and it'll fall into place.
i see what you mean kind of! but it isnt really working!!! please wouls someone help me go through all the steps. Thankyouuuu
Originally Posted by curlywurlysqurly i see what you mean kind of! but it isnt really working!!! please wouls someone help me go through all the steps. Thankyouuuu fine, we will spoil you this time Let So our integral becomes: TD!'s underbraces make the substitution more explicit
Originally Posted by curlywurlysqurly integrate: 4x^3 exp(2x^4) Note that Integrate both sides Divide by two and yields
Ooooohhhhh thankyou! very clever, now that you have done it i remember doin that at school! lol ahh well, needed that for my test tomorrow!!! Thanks!
Sorry, that was actually to Jhevon but thanks to everyone!!
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