Math, asked by harshitchauhan720871, 9 months ago

How to do this question ?

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Answered by payalmanghnani11
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 adityababu11
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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