मान ज्ञात कीजिए : `(3bara- 5barb).(2bara + 7barb)`

If absbara = 3, absbarb =4 and (bara,barb)=(2pi)/3 , " then the value of " (3bara-2barb).(bara+2barb) is

[bara barb barc]+[bara barc barb] =

If bara,barb " are noncollinear unit vectors, " abs(bara+barb) =sqrt 3 " then " (2bara+5barb).(3bara-barb) =

If bara,barb,barc are any three vectors such that (bara+ barb) . barc = (bara - barb) . barc = 0 then (baraxx barb)xxbarc =

If bara,barb and barc are three non-coplanar vectors, then : (bara + barb + barc) · [(bara + barb) xx (bara + barc)] =

If bara,barb and barc are three non-coplanar vectors, then : (bara + barb + barc) · [(bara + barb) xx (bara + barc)] =

bara.(barb+barc)xx(bara+barb+barc)=

[[bara-barb, barb-bara, barc-bara]]=

Volume of parallelepiped determined by vectors bara,barb and barc is 5. Then the volume of the parallelepiped determined by the vectors 3(bara +barb). (barb + barc) and 2( barc + bara) is

Volume of parallelepiped determined by vectors bara,barb and barc is 5. Then the volume of the parallelepiped determined by the vectors 3(bara +barb). (barb + barc) and 2( barc + bara) is