Expand $$$(1+a)^{5}$$$ in ascending powers of $$$a$$$ up to and including the term in $$$a^{3}$$$. .................................................................................................................................................... .................................................................................................................................................... .................................................................................................................................................... .................................................................................................................................................... .................................................................................................................................................... .................................................................................................................................................... .................................................................................................................................................... .................................................................................................................................................... ....................................................................................................................................................

Mathematics

IGCSE&ALevel

CAIE

Exam No：9709_s20_qp_13 Year：2020 Question No：4(a)

Answer:

$1+5 a+10 a^{2}+10 a^{3}+\ldots$

Knowledge points:

1.6.1 use the expansion of , where is a positive integer (Including the notations and n!) (Knowledge of the greatest term and properties of the coefficients are not required.)

Answer:

Knowledge points:

Solution:

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