the 12th and 21st terms of an ap are 23 and 50. find the first term and the common difference. is 32 a term of the ap? determine the n th term of the ap
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21st term - 12 th term =27
Difference of 9 terms =27
Diffetence between consecutive terns=27/9=3
a(12)=a+ common difference* 11
23=a+ 33
a=-10
32 can be presented as
-10+3*14
That is 32 is the 15 th term in this series
Difference of 9 terms =27
Diffetence between consecutive terns=27/9=3
a(12)=a+ common difference* 11
23=a+ 33
a=-10
32 can be presented as
-10+3*14
That is 32 is the 15 th term in this series
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