Solve For X : 4sin^2x - 4 Cos X = 1 . - Toppr

SolveGuidesJoin / LoginUse appLogin0You visited us 0 times! Enjoying our articles? Unlock Full Access!Standard XIIMathematicsQuestionSolve for x:4sin2x4cosx=1.Open in AppSolutionVerified by Toppr

4sin2x4cosx=14(1cos2x)4cosx=144cos2x4cosx=14cos2x+4cosx3=04cos2x+6cosx2cosx3=0(2cosx1)(2cosx+3)=0cosx=12x=60

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Từ khóa » Giải Phương Trình 4 Sin Bình X + 4cosx - 1 = 0