Find the pattern in the sequence 2, 11, 20, 29, …. and determine algebraic expression for this
sequence. Write the 10 th and 15 th terms of the sequence
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Step-by-step explanation:
2, 11, 20, 29,..........
we can see that this is an A.P.
So, a=2 and d= a2 - a1 = 11 - 2 = 9
a(n) = a + (n - 1)d
a(10) = 2 + (10 - 1)9
= 2 + (9)9
= 2 + 81
= 83
a(15) = 2+(15-1)9
=2+(14)9
=2+126
=128
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