Question

find the 4th term from the end of the ap -11,-8,-5,.....,-49​

Answer 1

-2 is the answer







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Answer 2

Answer:

an is not -49 it is 49

Hi buddy this will be your answer.

a= -11

d= -8-(-11)

d= 3

an = a + (n - 1)d

49 = -11 + (n - 1)3

49 + 11 = (n - 1)3

60/3 = (n -1)

20 + 1= n

n = 21

We need to find out 4th term from the end

So, 21 - 4

= 17

an = a+(n- 1)d

= -11 + (17 - 1)3

= -11 + 48

= 37

Thanks

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