Question

упростите выражение 1- sin2tsint/2cost

Answer 1

1- sin2tsint/2cost = 1 - 2sint*cost*sint/2cost = 1- sin²t = cos²t 

Answer 2

1 - sin2t*sin t  / 2 cos t

 

1- 2sint  cost sint / 2 cos t

 

1- sin ^2 t = cos^t