Answer:
Question 7. -2 8. 3/2
Step-by-step explanation:
Answer:
i think it's <C and <R since they're 90 degree angles, though they are small
Yes that is true, all opposite sides would be parallel, and all the corners are 90 degrees, then yes it is true
Answer:
0.5* sin(x)
Step-by-step explanation:
As well known sin (2A)= 2sin(A)*cos(A)
As in our case A=x/2 => cos(x/2*sin(x/2)=1/2*sin(x)=0.5*sin(x)