Cauchy’s linear differential equation \({x^n}\frac{{{d^n}y}}{{d{x^n}}} + {a_1}{x^{n - 1}}\frac{{{d^{n - 1}}}}{{d{x^{n - 1}}}} + \ldots + {a_n}y = f\left( x \right)\) can be reduced to a linear differential equation with constant coefficient by using substitution

Cauchy’s linear differential equation \({x^n}\frac{{{d^n}y}}{{d{x^n}

1.	Cauchy’s linear differential equation \({x^n}\frac{{{d^n}y}}{{d{x^n}}} + {a_1}{x^{n - 1}}\frac{{{d^{n - 1}}}}{{d{x^{n - 1}}}} + \ldots + {a_n}y = f\left( x \right)\) can be reduced to a linear differential equation with constant coefficient by using substitution
A.	x = ez
B.	y = ez
C.	z = ex
D.	z = ey
Answer» B. y = ez

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