Ответы и объяснения

2013-01-23T16:21:44+04:00

1)sin(3x-пи/8)=1/2                                           и              2)sin(3x-пи/8)= - 1/2

3х - pi/8 = (-1)^n (pi/6) +pin                                                3х - pi/8 = (-1)^(n+1) (pi/6) +pin  

3x = (-1)^n (pi/6) +pi/6+pin                                                  3x = (-1)^(n+1) (pi/6) +pi/6+pin   

x = (-1)^n (pi/18) +pi/18+pin /3                                             x = (-1)^(n+1) (pi/18) +pi/18+pin /3