Question

(ii) a(a + 2b) 62 (a - b)​

Answer 1

Answer:

If a, b, c are in AP 2b=a+c

Step-by-step explanation:

(a+2b-c) (2b+c-a) (c+a-b)

(a+a+c-c) (a+c-a) (2b-b)

(2a) (2c) (b)

=4abc