Diffentiation exam question

I know how to differentiate exponentials, but I cant seem to go from step 1 to step 2 (see attached). Could someone please help!

I know how to differentiate exponentials, but I cant seem to go from step 1 to step 2 (see attached). Could someone please help!

You have to use the product rule, making e^-2x = u, and (1-2x) = v. Have you tried using the product rule?

[deleted]

(edited 11 months ago)

Original post by _Hello_There_

as the other respondent said, you should use the product rule. here's a worked solution if you'd like it:
y' = e^-2x * (1-2x) = u * v

Please remove the details of your worked solution - it's against forum rules to post full solutions! Thanks :smile:

Please remove the details of your worked solution - it's against forum rules to post full solutions! Thanks :smile:

oops, i didn't realise there were rules for the forums as opposed to the full website, sorry!

Original post by _Hello_There_

oops, i didn't realise there were rules for the forums as opposed to the full website, sorry!

There's a Sticky Post - easy to miss if you don't post here regularly :smile:

(edited 11 months ago)

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