Question

Select all the solutions of the given equation for 0° < θ < 360°

secθsinθ - 2sinθ = 0
ans:60,90,120,180,240,300

Answer 1

sin(x)(sec(x)-2)=0
Set both factors =0

Answer 2

sin(x)=0 sec(x)=2
x=90 cos(x)=1/2
x=60, -60+360=300

Answer 3

so its 90,60 and 300

Answer 4

How surprising, but myi is confusing sin(x) with cos(x). sin is zero at 0 deg (excluded by your constraints 0<x< 360) and x=180 (and x=360, also excluded)

Answer 5

So here is the bottom line. If sin x = 0 and x is between 0 and 360 degrees, then the angle x is 0 or 180 degrees.
If the cos(x) = 1/2 and x is between ) and 360 degrees, then the angle is 60 and 300 degrees

Answer 6

So choose 60, 180, and 300

Answer 7

oops phi is right
i made a mistake lol

Answer 8

sin(x)=1 => x=90 my bad :(