Question

Como resolve 4.sen² x - 3 = 0

Answer 1

4.sen² x - 3 = 0

4.sen² x = 3

sen²x = 3/4

senx = √3/4 = √3/√4 = ±√3/ 2

x'= 60°

x"= 120

x"' = 240°

x"" = 320°