Emperor Penguin
New member
Please help... I am just really confused.
Solve cos x tan x - sin^2 x = 0 for all real values of x.
[a] ?k, ?/2 + 2?k
?/2 + ?k, 2?k
[c] ?/2 + 2?k, 3?/2 + 2?k
[d] ?k, ?/4 + 2?k
Solve 2 sin^2 x – sin x = 0 for principal values of x.
[a] 60° and 120°
0° and 150°
[c] 0° and 30°
[d] 60°
Solve cos x tan x - sin^2 x = 0 for all real values of x.
[a] ?k, ?/2 + 2?k
?/2 + ?k, 2?k
[c] ?/2 + 2?k, 3?/2 + 2?k
[d] ?k, ?/4 + 2?k
Solve 2 sin^2 x – sin x = 0 for principal values of x.
[a] 60° and 120°
0° and 150°
[c] 0° and 30°
[d] 60°