What is the length, in units, of CD. As you can see in the image I already got it correct but I kind of guessed. I want to know how to properly solve this without using sin, cos, and tangent functions since this unit has not yet covered those nor are we supposed to know them.​

I hope D option is write

I hope you help

Option C is the answer please

Step-by-step explanation:

Hope it's helpful

the correct answer is d

hope this

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2