Original post by Matheen1
How would I solve 3bi?
How would I solve 3bi?
Since you can't see it straight off, try a substution, u=1+x.
With familiarity, you can do it via recognition, or the infamous "inverse chain rule". Rewriting it as might help, or not.
Original post by ghostwalker
Since you can't see it straight off, try a substution, u=1+x.
With familiarity, you can do it via recognition, or the infamous "inverse chain rule". Rewriting it as might help, or not.
With familiarity, you can do it via recognition, or the infamous "inverse chain rule". Rewriting it as might help, or not.
Original post by Matheen1
Ok thanks, so have I integrated it correctly?
Yes.
Original post by ghostwalker
Yes.
Ok. But from this point I am still struggling to get the required answer.
Original post by Matheen1
Ok. But from this point I am still struggling to get the required answer.
Post your working then - I suspect it's an arithmetic slip. You should end up with a=5.
(edited 11 months ago)
Original post by Matheen1
Ok. But from this point I am still struggling to get the required answer.
Post what you wrote down as the final fraction for 3(b)(i)
Original post by ghostwalker
Post your working then - I suspect it's an arithmetic slip. You should end up with a=5.
Agree with a = 5 (doing it in my head so hopefully no silly slips!)
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