we know that x^2+x+1=0. but this means that x is a cube root of unity ie x^3=1HSC 2016 Q 10. I spent 5 minutes this morning on this question and couldn't work it out.
Any tips? Advice? Short cuts? I assume 5 minutes would be too long for a question like this .
Why indeed it is! As asked, the question makes for a very nice complex number question (and a bit of algebra) which is more than doable at the MX2 level.Is this by any chance just you taking a special case of the AMM Problem 11947 of 2016?
What's the long process? Integration by parts?Just a curious question, is there a a faster way to prove the Recursive Integration Formulae without going through the long process?
It will come with practice. Maybe post an example question so we can guide you through the thought process!Hey Guys!!
I am new around here, and not the best at this 4unit maths subject. When doing questions, I am not able to see the distinct ideas, and i get stuck, not knowing how to approach, or what the best and most efficient approach is. Any tips and help will be most appreciated! <3