Is 56 , a term of arithmetic sequence 3, 10, 17,.. ?
Yes
No
Cannot be determined
a = 3 , d = 10 – 3= 7
An = a + ( n-1 ) d = 56
3 + (n-1)7 = 56
(n-1)7 = 53
n-1 = 537
n = 607
Since , n is not an integer ,so, 56 is not a member of given arithmetic sequence.
56 is a term of arithmetic sequence 3, 10, 17,....