Khoảng cách từ điểm \(M\left( {{x_0};{y_0}} \right)\) đến đường thẳng \(\Delta :ax + by + c = 0\) là
A.\(d\left( {M;\Delta } \right) = \frac{{\left| {a{x_0} + b{y_0} + c} \right|}}{{\sqrt {{a^2} + {b^2}} }}\)
B.\(d\left( {M;\Delta } \right) = \frac{{a{x_0} + b{y_0} + c}}{{\sqrt {{a^2} + {b^2}} }}\)
C.\(d\left( {M;\Delta } \right) = \frac{{\left| {a{x_0} + b{y_0}} \right|}}{{\sqrt {{a^2} + {b^2}} }}\)
D.\(d\left( {M;\Delta } \right) = \frac{{a{x_0} + b{y_0}}}{{\sqrt {{a^2} + {b^2}} }}\)
A.\(d\left( {M;\Delta } \right) = \frac{{\left| {a{x_0} + b{y_0} + c} \right|}}{{\sqrt {{a^2} + {b^2}} }}\)
B.\(d\left( {M;\Delta } \right) = \frac{{a{x_0} + b{y_0} + c}}{{\sqrt {{a^2} + {b^2}} }}\)
C.\(d\left( {M;\Delta } \right) = \frac{{\left| {a{x_0} + b{y_0}} \right|}}{{\sqrt {{a^2} + {b^2}} }}\)
D.\(d\left( {M;\Delta } \right) = \frac{{a{x_0} + b{y_0}}}{{\sqrt {{a^2} + {b^2}} }}\)
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Hóa Học lớp 12
