Question

sendo tgx=3/4 calcule sen2x

Answer 1

co = 3
ca = 4
hip = 5

sen x = 3/5
cos x = 4/5

sen(2x) = 2.sen(x).cos(x)

sen(2x) = $2. \frac{3}{5}. \frac{4}{5}$ = $\frac{24}{25} = 0,96$