Question

In an A.P. an is equal to
3n + 2 then find 12th term.​

Answer 1

Answer:

Given:

a_na

n

= 3n + 2

We have to find, the 12th term of an A.P. (a_{12}a

12

) = ?

Solution:

∴ a_na

n

= 3n + 2

Put n = 1, 2, 3, 4, 5 ......., n

The 1st term of an A.P. ,

a_{1}a

1

= 3(1) + 2

= 3 + 2 = 5

The 2nd term of an A.P. ,

a_{2}a

2

= 3(2) + 2

= 6 + 2 = 8

.........

The 12th term of an A.P. ,

a_{12}a

12

= 3(12) + 2

= 36 + 2 = 38

∴ The 12th term of an A.P. (a_{12}a

12

) = 38

Thus, the 12th term of an A.P. (a_{12}a

12

) = 38

Step-by-step explanation:

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