Determine the 25th term of an AP whose 9th term is - 6 and common difference is 5/4
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Answer:
given that 9th term = -6=a+8d
where d=5/4
substitute d
-6=a+8(5/4)
-6=a+10
a=-16
25th term = a+24d
=-16+24(5/4)
=-16+30=14
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