Question

prove that an=a+(n-1)d​

Answer 1

Step-by-step explanation:

Let al,a2 ,a3,...be an ap with first term (a) and common difference (d).

A1=a=a+0=a+(1-1)d

A2=a1+d=a+(2-1)d

Looking at the above pattern ,we can say that

an = a + (n - 1) * d