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Mathematics
Mathematics
Problem
If the median
A
D
AD
A
D
of a triangle
A
B
C
ABC
A
B
C
makes an angle
θ
\theta
θ
with side
A
B
AB
A
B
, then
sin
(
A
−
θ
)
\sin(A - \theta)
sin
(
A
−
θ
)
is equal to a.
b
c
sin
θ
\frac{b}{c} \sin \theta
c
b
sin
θ
b.
c
b
sin
θ
\frac{c}{b} \sin \theta
b
c
sin
θ
c.
c
b
cos
θ
\frac{c}{b} \cos \theta
b
c
cos
θ
d. None of these
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