Question

1-cosx+sinx=0 решить уравнение

Answer 1

sinx-cosx=-1
√2(√2/2*sinx - √2/2 * cosx)=-1
sin(x-п/4)=-√2/2
x-п/4 = (-1)^(k+1) * п/4 + пk
x= (-1)^(k+1)* п/4 + п/4 + пk