If two straight lines intersect and one angle is 30°, what are the other three angles? a. 30°, 150°, 150°b. 90°, 90°, 150°c. 30°, 90°, 180°d. 90º, 150°, 180°

the answer is A

Step-by-step explanation:

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

idk man good luck man