|
|
|
|
|
| Author |
Message |
![[Post New]](/templates/default/images/icon_minipost_new.gif) 6 Jan 2008 10:50:12 IST
|
|
|
if three vectors a,b,c satisfy a+b+c=0,thenangle between a&bis
|
|
|
|
6 Jan 2008 18:39:04 IST
|
|
|
if three vectors a,b,c satisfy a+b+c=0,thenangle between a&b is ====== SOLUTION:- a + b = - c Squarring, [ a + b ] = c2 a2 + b2 + 2 a . b = c2 a2 + b2 + 2 | a || b | cos @ = c2 cos@ = [c2 - a2 + b2 ] / 2ab Cheers !
|
IF U THINK U CAN, U CAN........IF U THINK U CAN'T, U CAN'T.........
BE THE BEST OF WHAT EVER YOU ARE!!!
THEN U WILL SUCCEED FOR SURE!!!
     
|
this reply: 7 points
(with 1 
in 2 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
|
|
|
|
|
|
|
Moderation Team
![[Up]](/templates/default/images/icon_up.gif "[Up]"){kind=icon}
