Автор - thomthom

a, sin4x = 2/3
b, sinx = 1/4
c, 3sin4x = 5
d, 2sin2x - 1 = 0
e, sin2x = -1

Ответ

Автор - aastap7775

Ответ:

Пошаговое объяснение:

1. \sin(4x) = frac{2}{3} \4x = (-1)^narcsin(frac{2}{3}) + pi n\  x = frac{1}{4} ((-1)^narcsin(frac{2}{3}) + pi n)\2.\sin(x) = frac{1}{4}\ x = (-1)^narcsin(frac{1}{4}) + pi n\3.\3sin(4x) = 5\sin(4x) = frac{5}{3} \No - real - solutions\4. \2sin(2x) - 1 = 0\sin(2x) = frac{1}{2}\ 2x = (-1)^narcsin(frac{1}{2}) + pi n = (-1)^nfrac{pi}{6}  + pi n\x = (-1)^n frac{pi}{12} + frac{pi}{2} n\5.\sin(2x) = -1\2x = -frac{pi}{2} + 2pi n\x = -frac{pi}{4} +pi n

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