Question

Find the 17th term from the end of the AP: 1, 6, 11, 16….. 211, 216 please answer it with explanation

Answer 1

Here, t1=1, t2=6, d=t2-t1=6-1=5
t17=a+(n-1)d
t17=1+(17-1)5
=1+(16)5
t17=81
Hence the answer is 81

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