3) cosa cosb cosc$ — — cos2c + — — cosc— cosc 2 730 ( "j t) cosa cosb cosc$0 2 sin2a...
- Home
- Documents
- 3) cosA cosB cosC$ — — cos2C + — — cosC— cosC 2 730 ( "J T) cosA cosB cosC$0 2 sin2A +sin2B + sin2C=2 cosA cosB cosC+2 cosc=— (2)ž.O, (cosÐ)" ... cos sin2A + sin 2B +
18
Upload: trinhnhi
Post on 30-Mar-2018
252 views