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Advent calendar 2023
17 December
All 2023 advent puzzles
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If you expand \((a+b+c)^2\), you get \(a^2+b^2+c^2+2ab+2ac+2bc\). This has 6 terms.
How many terms does the expansion of \((a+b+c+d+e+f)^5\) have?
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\((a+b+c+d+e+f)^5\) has
252
terms.
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functions
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lines
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ellipses
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factors
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irreducible numbers
consecutive integers
money
the only crossnumber
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binary
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cryptic clues
speed
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means
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triangles
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geometric means
sequences
symmetry
differentiation
range
complex numbers
dice
unit fractions
cube numbers
calculus
square roots
regular shapes
polygons
number
multiples
indices
cubics
coordinates
trigonometry
ave
probabilty
routes
expansions
even numbers
scales
digital products
bases
circles
probability
geometric mean
perimeter
integration
perfect numbers
chalkdust crossnumber
geometry
partitions
addition
coins
combinatorics
determinants
prime numbers
gerrymandering
colouring
crosswords
grids
christmas
dominos
tournaments
cards
tiling
dates
sets
star numbers
triangle numbers
remainders
shapes
squares
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surds
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