Question

1-sint×cost÷(cost-sint)^2
УМОЛЯЮ.ПОМОГИТЕ

Answer 1

$frac{1-sint*cost}{(cost-sint)^2}= frac{1-sint*cost}{cos^2t-2cost*sint+sin^2t}= frac{1-sint*cost}{1-2cost*sint}= frac{1-sint*cost}{1-sin2t}$