Find the volume of the parallelepiped whose conterminous edges are represented by the vectors

i.


ii.


iii.


iv.


i.


Given :


Coterminous edges of parallelopiped are where,





To Find : Volume of parallelepiped


Formulae :


1) Volume of parallelepiped :


If are coterminous edges of parallelepiped,


Where,





Then, volume of parallelepiped V is given by,



2) Determinant :



Answer :


Volume of parallelopiped with coterminous edges









= 1(-1) -1(-2) + 1(3)


= -1+2+3


= 4


Therefore,



ii.


Given :


Coterminous edges of parallelopiped are where,





To Find : Volume of parallelepiped


Formulae :


1) Volume of parallelepiped :


If are coterminous edges of parallelepiped,


Where,





Then, volume of parallelepiped V is given by,



2) Determinant :



Answer :


Volume of parallelopiped with coterminous edges









= -3(-36) -7(36) + 5(-24)


= 108 – 252 – 120


= -264


As volume is never negative


Therefore,



iii.


Given :


Coterminous edges of parallelopiped are where,





To Find : Volume of parallelepiped


Formulae :


1) Volume of parallelepiped :


If are coterminous edges of parallelepiped,


Where,





Then, volume of parallelepiped V is given by,



2) Determinant :



Answer :


Volume of parallelopiped with coterminous edges









= 1(2) +2(2) + 3(2)


= 2 + 4 + 6


= 12


Therefore,



iv.


Given :


Coterminous edges of parallelopiped are where,





To Find : Volume of parallelepiped


Formulae :


1) Volume of parallelepiped :


If are coterminous edges of parallelepiped,


Where,





Then, volume of parallelepiped V is given by,



2) Determinant :



Answer :


Volume of parallelopiped with coterminous edges









= 6(10) + 0 + 0


= 60


Therefore,



1