Question

4 and the 12th term of an ap is 14 and 17 respectively then find the common difference​

Answer 1

Answer:

d = 3/8

Step-by-step explanation:

a 4 = 14

a 12 = 17

a + 3 d = 14   [1]

a + 11 d = 17   [2]

Adding 1 and 2,

a +  11 d  = 17

a  +  3 d  =  14

(-)  (-)          (-)

      8 d  =  3

        d =     3/8

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