Hw many terms has the A p whose finterm is an the last term is 57 given that the common difference is 3?
To find the number of terms in an arithmetic progression (AP), we can use the formula:
n = (last term - first term) / common difference + 1
In this case, the first term (a1) is given as 'an' and the last term is 57. The common difference (d) is given as 3.
Therefore, substituting these values in the formula, we get:
n = (57 - an) / 3 + 1
Since the first term is 'an', we can rewrite the formula as:
n = (57 - an) / 3 + 1
Without knowing the value of 'an', we cannot determine the exact number of terms in the arithmetic progression.