Toán Lớp 11: y=sin căn x + $x^{2}$ . xác định chẵn lẻ
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Toán Lớp 11: y=sin căn x + $x^{2}$ . xác định chẵn lẻ
Comments ( 2 )
y\left( { – x} \right) = \sin \left( {\sqrt { – x + {{\left( { – x} \right)}^2}} } \right)\\
= \sin \sqrt {{x^2} – x} \ne \pm y\left( x \right)
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