Question

The 7th term of an ap is 32 and 13th term is 62 find the ap

Answer 1

Answer:

A.P. is 2, 7, 12, 17

Step-by-step explanation:tn= a+ (n-1)d --------formula

t7= a+ (7-1)d

32= a+ 6d --(1)

t13= a+ (13-1)d

62 = a+ 12d -- (2)

subtract (1) from (2)

    a+12d=62

  - a+6d =32

      6d =30

    d =5

 

 d=5 in (1)

 32= a + 6x5

 32= a + 30

 a= 32 - 30

 a=2

 

 A.P. is 2, 7, 12, 17