Political Science, asked by aditya504834, 7 months ago

the first two term of A.P. is -5 and 6 find 21 at term​

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Answered by Anonymous
6

Given:

a ( First Term ) = -5

a2 ( Second Term ) = 6

n ( Number of Terms ) = 21

d ( Common Difference ) = 11

To Find:

The 21st term of the A.P.

Formula:

an = a + ( n - 1 )d

Solution:

a21 = -5 + ( 21 - 1 )11

a21 = -5 + 220

a21 = 215

Answer:

(d) 215 is the correct answer.

215 is the 21st term of the A.P.

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