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Q 1.
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For the function f(x)=x-1x, find f(2) and f (3).
The value of f(2)=12and f(3)=23
The given function isf(x)=x-1x
f(2)=2-12=12f(3)=3-13=23
In Problems 17–28, write down the first five terms of each sequence.
bn=nen
True or False. A function is a relation between two sets D
and R so that each element x in the first set D is related to exactly one element y in the second set R.
cn=n22n
In Problems 37–50, a sequence is defined recursively. Write down the first five terms.
a1=5; an=2an-1
In Problems 51–60, write out each sum.
∑k=0n-1 13k+1
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