If the area of triangle ABC having vertices `A(veca),B(vecb),C(vecc)` is `t|vecaxxvecb+vecbxxvecc+vecc+veccxxveca| then t[=` (A) 2 (B) `1/2` (C) 1 (D) none of these

If veca+2vecb+3vecc=0 , then vecaxxvecb+vecbxxvecc+veccxxveca=

Express veca,vecb,vecc in terms of vecbxxvecc, veccxxveca and vecaxxvecb .

If [vecaxxvecb vecbxxvecc veccxxveca]=lamda [veca vecb vecc]^2 then lamda is equal to (A) 1 (B) 2 (C) 3 (D) 0

For three vectors veca+vecb+vecc=0 , check if (vecaxxvecb)=(vecbxxvecc)=(veccxxveca)

If veca, vecb, vecc are three vectors, then [(vecaxxvecb, vecbxxvecc, veccxxveca)]=

veca.(vecbxxvecc) is called the scalar triple product of veca,vecb,vecc and is denoted by [veca vecb vecc] . If veca,vecb,vecc are coplanar then [veca+vecb vecb+vecc vecc+veca ] = (A) 1 (B) -1 (C) 0 (D) none of these

If 4veca+5vecb+9vecc=0 " then " (vecaxxvecb)xx[(vecbxxvecc)xx(veccxxveca)] is equal to

If veca, vecb, vecc are non coplanar vectors such that vecbxxvecc=veca, vecaxxvecb=vecc and veccxxveca=vecb then (A) |veca|+|vecb|+|vecc|=3 (B) |vecb|=1 (C) |veca|=1 (D) none of these

If veca,vecb,vecc be three vectors such that [veca vecb vec c]=4 then [vecaxxvecb vecbxxvecc veccxxveca] is equal to

For any three vectors veca, vecb, vecc the value of vecaxx(vecbxxvecc)+vecbxx(veccxxveca)+veccxx(vecaxxvecb) , is