find the 19th term for following A. P. =7,14,21,28,........
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Answer:
the given sequence is 7,13,19,25......
Explanation:
here,
1st term(a)=7
d=a2-a1 = 13-7=6
now
a19=a+(n-1)d
=7+(19-1)6
= 7+(18)6
=115
hence, the 19th term of progression is 115
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