Question

find the 12th term of AP 5,8,11,14....….......
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Answer 1

hey mate ,

a = 5

d = 8-5 = 3

n = 12

An = a + ( n-1 )d

= 5 + ( 12-1 ) 3

= 5 + 33

= 38

Thus , 12th term of AP of 38

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Answer 2

Step-by-step explanation:

5,8,11,14,.....

From the above series,

First term (a)=5

Common difference (d)=a 2 −a1 =8−5=3

As we know that the general term in an A.P. is given as-

a n=a+(n−1)d

∴a 10=5+(12−1)3

⇒a 100=5+33=38.