Can someone solve this

[halcyon folio]

I'm looking for someone who can solve it

[hollow roost]

1. Wait patiently for a helper to come along.
2. Once someone helps you, say thank you and close the thread with:

+close

3. Feel free to nominate the person for helper of the week in #helper-nominations
4. Do not ping the mods, unless someone is breaking the rules.
5. If you're happy with the help you got here, and the server overall, you can contribute financially as well:

[hybrid canyon]

Which one do you need help with ?

[halcyon folio]

d

I solved all of them except for d

I am having hard time solving d

[hybrid canyon]

Well primitive the function with respect to x

And then with respect to y

You’ll see you’ll get the same result for both