In `DeltaABC, cotA/2, cotB/2, cotC/2` are in A.P., then the true statement is:A. `b^(2)=ac`B. `c^(2)=ab`C. `2b=a+c`D. `2a=b+c`

In `DeltaABC, cotA/2, cotB/2, cotC/2` are in A.P., then the true state

1.	In `DeltaABC, cotA/2, cotB/2, cotC/2` are in A.P., then the true statement is:A. `b^(2)=ac`B. `c^(2)=ab`C. `2b=a+c`D. `2a=b+c`
Answer» Correct Answer - C