Question

The common difference of an ap whose general form is an=2n+1

Answer 1

Answer:

let common difference be d.

d=2

Step-by-step explanation:

an=2n+1

a1=2×1+1=3

a2=2×2+1=5

so a2-a1= (a+d)-(a)=d=5-3=2

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Answer 2

Answer:

an = 2n-1

a = 2×1 -1

a = 1

a2 = 2×2+1

a2 = 5

common difference = 5-1

= 4

hope it will help you