Question

If the nth term of A.P. is given by an=5n-3 then find it's common difference​

Answer 1

Tₙ = 5n-3

T₁ = 5(1)-3 = 5-3 = 2

T₂ = 5(2)-3 = 10-3 = 7

d  = 7-2 =5(ANS)

Answer 2

Answer:

let n=1

an=5*1-3=2

let n=2

an=5*2-3=7

let n=3

an=5*3-3=12

the ap is 2,7,12......soon

the common difference is d=7-2=5=12-7