Question

find the value of `k in the arithmetic sequence. (3k-4), (7k+1), (12k -5)Write the sequence.​

Answer 1

Step-by-step explanation:

if 3 term a,b and c are in ap then 2b= a+c

in question,

(3k-4), (7k+1), (12k -5) are in ap so,

2(7k+1)=(12k-5)+(3k-4)

14k+2= 15k-9

k= 11

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