The lengths of the sides of a triangle are 9, 12, and 14. Classify the triangle as acute, right, or obtuse.
1 answer:
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Answer:
Arithmetic sequence
Step-by-step explanation:
We are given that
A(1)=9
We have to find first three terms and identify the sequence is geometric or arithmetic.
Substitute n=1
Then, we get
For n=2
For n=3
When the difference of consecutive terms are constant then the sequence is arithmetic sequence.
Therefore, given sequence is arithmetic sequence.