Question

решите уравнение cos(п/2+t)=-^3/2

Answer 1

$cos(pi / 2+t)=-sqrt{3}/2$ 

 

$pi / 2 + t = 5 pi / 6$ 

$t = 5 pi / 6 - 3 pi / 6 = pi /3 + 2 pi * n$ 

 

$pi / 2 + t = 7 pi / 6$ 

$t = 7 pi / 6 - 3 pi / 6 = 2 pi /3 + 2 pi * n$