Saved Bookmarks
| 1. |
If a + b + c = 21 and a2 + b2 + c2 = 155, then the value of (ab + bc + ca) is |
|
Answer» 143 . ... ...... .........If u GOT it then mark me as BRAINLIEST and LIKE my answer and FOLLOW me and INBOX me for EDUCATIONAL CHATS .... |
|