Ответ:
Пошаговое объяснение:
1 ) a) sin( x/2 + π/5 ) = √3/2 ;
x/2 + π/5 = ( - 1)ⁿ π/3 + πn , nЄ Z ;
x/2 = - π/5 + ( - 1)ⁿ π/3 + πn ;
x = - 2π/5 + ( - 1)ⁿ 2π/3 + 2πn , nЄ Z ;
б) sin( x/2 - π/6 ) = - 1 ;
x/2 - π/6 = - π/2 + 2πn , nЄ Z ;
x/2 = π/6 - π/2 + 2πn ;
x/2 = - π/3 + 2πn ;
x = - 2π/3 + 4πn , nЄ Z .
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Answers & Comments
Ответ:
Пошаговое объяснение:
1 ) a) sin( x/2 + π/5 ) = √3/2 ;
x/2 + π/5 = ( - 1)ⁿ π/3 + πn , nЄ Z ;
x/2 = - π/5 + ( - 1)ⁿ π/3 + πn ;
x = - 2π/5 + ( - 1)ⁿ 2π/3 + 2πn , nЄ Z ;
б) sin( x/2 - π/6 ) = - 1 ;
x/2 - π/6 = - π/2 + 2πn , nЄ Z ;
x/2 = π/6 - π/2 + 2πn ;
x/2 = - π/3 + 2πn ;
x = - 2π/3 + 4πn , nЄ Z .