Question

Resolva as equações, em R
a) 2sen (x) – 1 = 0
b) √2 · cos (x) – 1 = 0

c) tg (x) + 1 = 0

Answer 1

$2sin (x) - 1 = 0$

$√2 · cos (x) – 1 = 0$

$tg (x) + 1 = 0$