1
Let a, b, c be three vectors such that
→
→
→
a.(b+c)= b.(c+a)= c.(a+b) = 0 and a = 1,
16 = 4, CI=8 then | a+b+c) =
(2) 13 (6)81 (c) 9 (d) 5
th nornendicular to the

1
Let a, b, c be three vectors such that
→
→
→
a.(b+c)= b.(c+a)= c.(a+b) = 0 and a = 1,
16 = 4, CI=8 then | a+b+c) =
(2) 13 (6)81 (c) 9 (d) 5
th nornendicular to the