Answer :

Given volume of the parallelepiped is 216 cubic units


Given


And


= are the coterminous edges of the parallelepiped.



[216


216=


216=5[21-(-2]-(-4)[28-]+1[-8-3]


216=5[21+2]+4[28-λ]+1[-11]


216= 105 +10 λ +112 -4 λ -11


216-105-112+11=6 λ


6 λ =10


=


⇒ λ =

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