Question

Q.5- If a, b, c are in AP then -​

Answer 1

Answer:

When a,b,c are in A.P.,

First term is t  

1

​  

=a

Second term t  

2

​  

=a+d=b

third term is t  

3

​  

=a+2d=c

Now a+c=a+(a+2d)=2a+2d=2(a+d)=2b

⇒a+c=2b

Step-by-step explanation: