find the no of term in AP 7, 4×1/2,12,......,-38
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u can apply the formula - an=a+(n-1)d
where an is the last no of the ap
a is the first number
d is the common difference
n is the number of terms
since u want to find n substitute the rest of the values and calculate
where an is the last no of the ap
a is the first number
d is the common difference
n is the number of terms
since u want to find n substitute the rest of the values and calculate
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