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Mathematics
Mathematics
Problem
A crystal has vertices at coordinates
A
(
0
,
0
,
0
)
A(0,0,0)
A
(
0
,
0
,
0
)
and
B
(
6
,
8
,
10
)
B(6, 8, 10)
B
(
6
,
8
,
10
)
. The base of the crystal lies on the
z
=
0
z=0
z
=
0
plane. Calculate the cosine of the angle between the diagonal segment
A
B
‾
\overline{AB}
A
B
and the base plane.
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