Chapter 8 College Algebra Review
14 test answers
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nth Term of a Geometric Sequence
answer
an=a1r^n-1
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Sum of Fourth Power of Integers
answer
n(n+1)(2n+1)(3n^2+3n-1)/30
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nth Term of an Arithmetic Sequence
answer
an=dn+c OR an=a1+(n-1)d
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Sum of the Fifth Power of Integers
answer
n^2(n+1)^2(2n^2+2n-1)/12
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Common Difference : Common Ratio
answer
d:r
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Sum of the First Powers of Integers
answer
n(n+1)/2
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n!
answer
1 x 2 x 3 x 4......n
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Sum of the Second Powers of Integers
answer
n(n+1)(2n+1)/6
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Sum of the Third Powers of Integers
answer
n^2(n+1)^2
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Sum of an Finite Geometric Series
answer
Sn=Ea1r^n-1=a1(1-r^n/1-r)
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