Question

 

решите уравнение cos⁡(π/2+X)=√32

                                                         

Answer 1

П/2+х=+-П/6+2Пк

х=+-П/6-П/2+2Пк

х=-П/3+2Пк

х=-2П/3+2Пк

Answer 2

cos⁡(π/2+X)=√32

 

sinx= - √3/2

 

x= (-1)^(k+1)*arcsin (√3/2)+pik

 

x=(-1)^(k+1)*pi/3+pik, k∈Z