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Question : 33 of 160
Marks:
+1,
-0
Solution:
The vertices of tetrahedron are,
A(4i+5j+k) B(−j+k) C(3i+9j+4k) And,
D(−2i+4j+4k) Therefore,
AB=(−4i−6j) AC=(−i+4j+3k) AD=(−6i−j+3k) Therefore, the volume is calculated as,
V=|||| =|[−60+90]| = =5 cubic units
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