* (9) Complete the calculation so that each shows the correct sum.
0.5 1 3 7
+
1
Your answer

1.5137

Step-by-step explanation:

step-by-step explanation:

a rhombus is a parallelogram enjoying his symmetry.

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