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Mathematics
Mathematics
Problem
If
sin
θ
=
3
5
\sin\theta = \dfrac{3}{5}
sin
θ
=
5
3
for an acute angle
θ
\theta
θ
, calculate the value of
4
cos
θ
−
3
sin
θ
4\cos\theta - 3\sin\theta
4
cos
θ
−
3
sin
θ
. a)
−
7
5
-\dfrac{7}{5}
−
5
7
b)
7
25
\dfrac{7}{25}
25
7
c)
7
5
\dfrac{7}{5}
5
7
d)
3
5
\dfrac{3}{5}
5
3
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