Final answer to the problem
$\sin\left(x\right)+C_0$
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Step-by-step Solution
Specify the solving method
1
Apply the integral of the cosine function: $\int\cos(x)dx=\sin(x)$
$\sin\left(x\right)$
2
As the integral that we are solving is an indefinite integral, when we finish integrating we must add the constant of integration $C$
$\sin\left(x\right)+C_0$
Final answer to the problem
$\sin\left(x\right)+C_0$