Question #99b2b
1 Answer
The question only asks for the missing number which is 34
Explanation:
When faced with a sequence you first need to establish if is arithmetic or geometric.
By example
Arithmetic:
Progresses by some variant on addition or subtraction of a constant
Geometric:
Progresses by some variant on the multiplication or division of some constant raised to a power.
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Observe that:
This indicates that it is a arithmetic progression and that as it is reducing the change is
Check:
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Let the first term be
Let the
By observation we deduce that:
check: