Asked by tyler
2sin2x+1=0
Answers
Answered by
Reiny
sin2x = -1/2
2x = 210° or 330°
x = 105° or 165°
the period of sin2x is 180°, so two other answers are
105+180 = 285° or 165+180 = 345°
in degrees: x = 105° 165° 285° 345°
in radians: x = 7π/12, 11π/12,19π/12, 23π/12
2x = 210° or 330°
x = 105° or 165°
the period of sin2x is 180°, so two other answers are
105+180 = 285° or 165+180 = 345°
in degrees: x = 105° 165° 285° 345°
in radians: x = 7π/12, 11π/12,19π/12, 23π/12
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