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Mathematics
Mathematics
Problem
If
θ
\theta
θ
is the angle between the lines
A
B
AB
A
B
and
C
D
CD
C
D
, then projection of line segment
A
B
AB
A
B
on line
C
D
CD
C
D
, is (a)
A
B
sin
θ
AB \sin \theta
A
B
sin
θ
(b)
A
B
cos
θ
AB \cos \theta
A
B
cos
θ
(c)
A
B
tan
θ
AB \tan \theta
A
B
tan
θ
(d)
C
D
cos
θ
CD \cos \theta
C
D
cos
θ
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