Asked by sol
solve the equation
2sin^2X - 3sinX= -1
2sin^2X - 3sinX= -1
Answers
Answered by
Reiny
2 sin^2 x - 3sinx + 1 = 0
(2sinx - 1)(sinx -1) = 0
sinx = 1/2 or sinx = 1
x = 30 degrees or 150 degrees or x = 90 degrees
in radians x = π/6, 5π/6, π/2
(2sinx - 1)(sinx -1) = 0
sinx = 1/2 or sinx = 1
x = 30 degrees or 150 degrees or x = 90 degrees
in radians x = π/6, 5π/6, π/2
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