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Differential Equations
easy
0:00.0
Verify if
y
=
cos
(
x
)
y = \cos(x)
y
=
cos
(
x
)
is a solution to
y
′
′
+
y
=
0
y'' + y = 0
y
′′
+
y
=
0
.
A
Yes
B
No
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