The 9th term of ap is equal to 6 times of 2nd term.If its 5th term is 22.Find ap
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a+8d=6 (a+d)
a+8d=6a+6d
8d-6d=6a-a
2d=5a-----------------(1)
a+4d=22
a=22-4d
2d=5 (22-4d)
2d=110-20d
2d +20d =110
22d=110
d=5
2d=5a
2×5=5a
a=2
ap is 2,7, 12,17,........
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