Answer
$\dfrac{4.4}{3} \cos (-3x+4 )+C$
Work Step by Step
Our aim is to solve the integral $\int 4.4 \sin (-3x+4 ) \ dx$
Let us consider that $a =-3x+4$ and $\dfrac{da}{dx}=-3\implies dx=\dfrac{-da}{3}$
Now, $\int 4.4 \sin (-3x+4 ) \ dx = \int \dfrac{-4.4}{3} \sin a \ da$
or, $=\dfrac{4.4}{3} \cos a+C$
or, $=\dfrac{4.4}{3} \cos (-3x+4 )+C$
