Integrate 2sinx
![Integrate 2sinx](integrate-2sinx/step-01.gif)
To integrate 2sinx, also written as ∫2sinx dx, we focus on the constant 2 and how it impacts the integration.
![](integrate-2sinx/step-02.gif)
A constant can be brought outside of the integral sign to simplify the integration.
![∫sinx dx = -cosx +C](integrate-2sinx/step-03.gif)
We use a standard proof from formula booklets, as shown above, and therefore ∫sinx dx = -cosx + C.
![](integrate-2sinx/step-04.gif)
Hence we substitute that into the equation and reintroduce the constant.
![∫2sinx dx = -2cosx + C](integrate-2sinx/step-05.gif)
After simplifying, this is the answer.