If `vecp=veca+vecb` , `vecq=veca-vecb` , `|veca|=|vecb|=1` then ` |vecpxxvecq|`=

Given that vecp=veca+vecb and vecq=veca-vecb and |veca|=|vecb| , show that vecp.vecq=0

Given that vecp=veca+vecb and vecq=veca-vecb and |veca|=|vecb|, show that vecp.veca=0

If vecp = veca - vecb , vecq = vec a + vec b and |veca| = |vecb| = 2 , then the value of |vecp xx vecq| is equal to

If |veca|=5|vecb|=4 and |veca+vecb|=1 then |veca-vecb|= ?

If veca,vecb,vecc be non coplanar vectors and vecp=(vecbxxvecc)/[veca vecb vecc], vecq=(veccxxveca)/[veca vecb vecc], vecr=(vecaxxvecb)/[veca vecb vecc] then (A) vecp.veca=1 (B) vecp.veca+vecq+vecb+vecr.vecc=3 (C) vecp.veca+vecq.vecb+vecr.vecc=0 (D) none of these

If (veca+vecb).(veca-vecb)=8 and |veca|=8(vecb) then find |vecb| .

If |veca|=3, |vecb|=1 and |veca+vecb|=|veca-vecb| , then |veca xx vecb| is:

For two vectors veca and vecb,veca,vecb=|veca||vecb| then (A) veca||vecb (B) veca_|_vecb (C) veca=vecb (D) none of these

For two vectors veca and vecb,veca,vecb=|veca||vecb| then (A) veca||vecb (B) veca_|_vecb (C) veca=vecb (D) none of these

Let veca and vecb be two vectors of equal magnitude 5 units. Let vecp,vecq be vectors such that vecp=veca-vecb and vecq=veca+vecb . If |vecp xx vecq|=2{lambda-(veca.vecb)^(2)}^(1/2) , then value of lambda is