find the term t18 of an AP 7, 13, 19, 25 ....
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let 'a' be the first term and 'd' be the common difference
first term (a) = 7
common difference (d) = 13 - 7 = 6
nth term = 18
by putting formula,
an = a+(n-1)d
=7+(18-1)6
= 7+(17)6
= 7+102
= 109
therefore,18th term of an ap is 109
'' please mark me as brainliest''
first term (a) = 7
common difference (d) = 13 - 7 = 6
nth term = 18
by putting formula,
an = a+(n-1)d
=7+(18-1)6
= 7+(17)6
= 7+102
= 109
therefore,18th term of an ap is 109
'' please mark me as brainliest''
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