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Answered by
1
Answer:
16th term of the A.P. is 78
Step-by-step explanation:
an= a+(n-1)d
hence,
an= 78
a= 3
d= 8-3
= 5
putting these values in formula
an = a+(n-1) d
Answered by
0
Answer:
hii friends .
(3) (i) Tn = a+( n-1 ) d
where a is the first term and d is the common difference.
a = 2 , Tn = 3
3=2+ ( 3 -1) d
d = 1/2
2nd term is a+ d
2+ 1/2
= _ 5/2
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