Question

Resolva no intervalo [0;2pi] a equação tgx-1=0

Answer 1

$\boxed{\begin{array}{l}\sf tg\,x-1=0\\\sf tg\,x=1\\\sf x=\dfrac{\pi}{4}~~ou~~ x=\dfrac{5\pi} {4}\\\sf S=\bigg\{\dfrac{\pi}{4},\dfrac{5\pi}{4}\bigg\}\end{array}}$