Integral of $$$- 2 \tan{\left(1 \right)}$$$
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Your Input
Find $$$\int \left(- 2 \tan{\left(1 \right)}\right)\, dx$$$.
Solution
Apply the constant rule $$$\int c\, dx = c x$$$ with $$$c=- 2 \tan{\left(1 \right)}$$$:
$${\color{red}{\int{\left(- 2 \tan{\left(1 \right)}\right)d x}}} = {\color{red}{\left(- 2 x \tan{\left(1 \right)}\right)}}$$
Therefore,
$$\int{\left(- 2 \tan{\left(1 \right)}\right)d x} = - 2 x \tan{\left(1 \right)}$$
Add the constant of integration:
$$\int{\left(- 2 \tan{\left(1 \right)}\right)d x} = - 2 x \tan{\left(1 \right)}+C$$
Answer
$$$\int \left(- 2 \tan{\left(1 \right)}\right)\, dx = - 2 x \tan{\left(1 \right)} + C$$$A