Solve on the interval [0,2pi) : 2 sin^2 x-3 sin x + 1 = 0 x= pi, x=2pi/3, x=5pi/3
x=2pi, x=pi/4, x=5pi/4
x=2pi, x=pi/3
x=pi/2, x=pi/6, x=5pi/6

50- 250 is correct i did that one too

step-by-step explanation:

ask the math teacher she or he would know lol.

step-by-step explanation:

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.