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In an arithmetic sequence, (a_8=73) and (a_{17}=181). What is (a_{26})?
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Answer and explanation
Correct answer: (289)
From (9d=108), (d=12), so (a_{26}=181+9\cdot12=289). It is easier to find a distant term from a nearby given term.
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What is the correct answer to this question?
(289)
Why is this the correct answer?
From (9d=108), (d=12), so (a_{26}=181+9\cdot12=289). It is easier to find a distant term from a nearby given term.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Sequences and Progressions. Topic: nth term.
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