Try expand and equate coefficients of x^k on both sides (which is seen by the nCk on the LHS.
I'll write a solution later if needed
Use (1+x)^n=(1+x)(1+x)^n-1 to prove that nCk= n-1Ck + n-1Ck-1
Thanks.
Preliminary 2017: //English Standard//Maths Extension 1//Physics//Chemistry//Design & Technology//IDTVET//
HSC 2018: //English Standard//Maths Extension 1//Maths Extension 2//Physics//Chemistry//
ATAR Aim: 95+
Try expand and equate coefficients of x^k on both sides (which is seen by the nCk on the LHS.
I'll write a solution later if needed
Offering tutoring for Biology, Maths, Maths Ext 1, and Maths Ext 2.
Solar Education - CHEAP Quality Tutoring
Buy my books/notes cheaply here!
--------------------------------------------------------------------------------
2016 HSC (Accelerated): // 2U Maths (97) // SOR 1 (48) //
2017 HSC: // English Adv // Bio // Phys // 3U Maths // 4U Maths //
Goal: 99.8+
Preliminary 2017: //English Standard//Maths Extension 1//Physics//Chemistry//Design & Technology//IDTVET//
HSC 2018: //English Standard//Maths Extension 1//Maths Extension 2//Physics//Chemistry//
ATAR Aim: 95+
Offering tutoring for Biology, Maths, Maths Ext 1, and Maths Ext 2.
Solar Education - CHEAP Quality Tutoring
Buy my books/notes cheaply here!
--------------------------------------------------------------------------------
2016 HSC (Accelerated): // 2U Maths (97) // SOR 1 (48) //
2017 HSC: // English Adv // Bio // Phys // 3U Maths // 4U Maths //
Goal: 99.8+
Preliminary 2017: //English Standard//Maths Extension 1//Physics//Chemistry//Design & Technology//IDTVET//
HSC 2018: //English Standard//Maths Extension 1//Maths Extension 2//Physics//Chemistry//
ATAR Aim: 95+
Offering tutoring for Biology, Maths, Maths Ext 1, and Maths Ext 2.
Solar Education - CHEAP Quality Tutoring
Buy my books/notes cheaply here!
--------------------------------------------------------------------------------
2016 HSC (Accelerated): // 2U Maths (97) // SOR 1 (48) //
2017 HSC: // English Adv // Bio // Phys // 3U Maths // 4U Maths //
Goal: 99.8+
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