sinx + sin2x = 1 then what is the value of x
i try it so many time
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12 Answers
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nda
sinx+sin2x=1br /or, sin x+2sinx cosx=1br /or, sinx(1+2cosx)=1br /or, (1-2cosx)(1+2cosx)=1br /or, 1-4cos x^2=1br /or, -4cos x^2=0br /or, cosx x^2=0br /or, cos x=0br /or, cos x=cos 90br /or, x=90