VectorHard
Question
The sine of angle formed by the lateral face ADC and plane of the base ABC of the tetra hedron ABCD where A ≡ (3, -2, 1) ; B ≡ (3, 1, 5); C≡ (4, 0, 3) and D ≡ (1, 0, 0) is -
Options
A.
B.

C.
D.
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