The sixth term of an ap is -10. 10th term is -26. Find 15th term of ap

Answer 1

The 10th term iks 4 terms after the 6th.
So, 4d = -26 - (-10) = -16
d = -4
Now the 15th term is 5 terms past the 10th term, so add 5d to -26.

Answer 2

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