Question

if a + 1, 2a + 1, 4a - 1 are in AP then the value of a is ​

Answer 1

Answer:

if the list is in AP. d is same

2a+1 -(a+1) = 4a - 1 - (2a+1)

2a +1 -a -1 = 4a -1 -2a -1

a = 2a -2

2a - a =2

a = 2

thus value of a = 2

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Answer 2

Hii

you are welcome in my ans

2a + 1 - a - 1 =a

4a -1 -2a-1= 2a -2

since common difference are equal so

2a -2 = a

a =2

term become

3,5,7 .......

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Hope it may helps you