Find a root correct to $3$ decimal places and range is $0$ & $0.5$ $F(x) = 4e^{-x} \sin x -1.$
According to book I follow answer is provided as $0.371$ correct to $3$ dp. I am unable to arrive at this.
Also $f(0.25)$ is given as $-0.22929$ and this trans equation is giving me nightmares. Experts request your help.