Answers

2016-01-05T19:49:14+05:30
It's tn is 4+(n-1)d
mark as brainliest if it is right

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2016-01-05T22:51:58+05:30
Here a= 4 and d=9-4=5.
therefore,
Tn = a+(n-1)d
=4+(n-1)5
=4+5n-5
=5n-1.
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