Question

Determine o período, a imagem, o domínio e construa o gráfico de f(x)=2.cos ( 3 ) – 3

Answer 1

$\boxed{\boxed{\mathsf{p=\dfrac{2\pi}{3}}}}$

$\boxed{\boxed{\mathsf{Imf(x)=[-5,-1] }}}$

$\boxed{\boxed{\mathsf{Df(x)=\{x\in\,\mathbb{R}\}}}}$