Solve the equation cos3x + sin2x = 0
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sin2x=-cos3x
sin2x=sin (180+3x)
now , use sinA=sinB
A=(-1)^nB+n.pi
so, use this
sin2x=sin (180+3x)
now , use sinA=sinB
A=(-1)^nB+n.pi
so, use this
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