Answer:
this is the answer
Step-by-step explanation:
Answer:sorry for the delate
let x as a cointerior angle and find the
0.5* sin(x)
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)
Step-by-step explanation: you answered the question
