Question

write the tenth term of the ap -5,-1,3,7

Answer 1

Given

a = -5

d = - 1 - (-5)

=> d = - 1 + 5

=> d = 4

So we have first term = - 5
common difference = 4

The nth Term of an A.P. is given by

Tn = a + (n - 1)d

So the tenth term

=> a + (10 - 1)d

= a + 9d


So put the value of a and d to get the tenth term

=> -5 + 9(4)

=> - 5 + 36

= 31


Answer :- 31

Answer 2

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