Question

if 18,a, b, -3 are in AP find a+b​

Answer 1

Answer:

Step-by-step explanation:

18,a,b,-3 are in ap

therfore a- 18 = -3 - b             (difference of consecutive terms are equal)

 that is a + b =  -3 + 18

            a + b =  15.

therefore value of a + b is 15

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Answer 2

Answer:

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