keegan102903 keegan102903
  • 16-07-2020
  • Mathematics
contestada

please help! i don't know what to do

please help i dont know what to do class=

Respuesta :

liftec liftec
  • 16-07-2020

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)

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