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Mathematics
Mathematics
Problem
Find the value of
y
y
y
if
y
=
cos
x
y=\cos x
y
=
cos
x
and
x
=
3
π
2
x=\dfrac{3\pi}{2}
x
=
2
3
π
. a)
−
1
-1
−
1
b)
1
1
1
c)
0
0
0
d)
2
2
\dfrac{\sqrt{2}}{2}
2
2
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