KiaraBilello413
KiaraBilello413 KiaraBilello413
  • 21-07-2015
  • Mathematics
contestada

Simplify the following, where k represents any integer: cos(2kpi-x)(-sin(2kpi-x))
a. -cosx*sinx
b. (1/2)sin(2x)
c. cos((1/2)x)^2
d. cos(x)^2*sin(x)^2
e. undefined

Respuesta :

crisforp
crisforp crisforp
  • 21-07-2015
= cos( -x ) * [ - sin( - x ) ] = cosx * sinx ;
cosx * sin x is the right answer !
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