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Posted: **Wed May 04, 2022 12:09 pm**

: Problem 2 The Expansion Of A B Where N Is A Positive Integer May Be Written With The Help Of Combination Notation 1 (29.45 KiB) Viewed 39 times

Problem 2. The expansion of (a + b)" where n is a positive integer may be written with the help of combination notation: (a + b)" = a¹ + (")a²−¹b + (")a²-²b² + ... + („^₂)abn-¹ + (")b¹ = ["__(^)an-kpk Use this to expand (i) (a + b)² (ii) (1+x)