• Want to level up your HSC Maths prep?
    Get some real practice on those harder questions!
    Click here for details and register for the BoS Trials now!

binomial help again sorryyyy. (1 Viewer)

CM_Tutor

Moderator
Moderator
Joined
Mar 11, 2004
Messages
2,638
Gender
Male
HSC
N/A
With these types of binomial identity questions, seeking that you find a relationship between binomial coefficients, there are essentially four approaches that you need to recognise:
  1. Substitute a value, as in the one above. This can be extended by combining results - example 1 below
  2. Use algebra or calculus on an expression prior to applying approach 1 - like example 2
  3. Form an expression by selecting terms from an identity and equating coefficients - like from the start of the 2020 MX1 HSC question
  4. Deriving results using combinatorics rather than, or accompanied by, algebra
Example Question 1








Example Question 2
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top