Question

Find the mean proportional between x-y and x³ - x ² y.
a. x(x - y)
b. y(x - y)
c. x(y - x)
d. xy - y​

Answer 1

Answer:

option a is correct..

Step-by-step explanation:

Let the mean proportional to (x–y) and (x

3

–x

2

y) be n.

(x–y),n,(x

3

–x2

y

) are in continued proportion

(x–y):n=n:(x

3

–x

2

y)

n

2

=(x−y)(x

3

–x

2

y)

n

2

=(x−y)x

2

(x–y)

n

2

=x

2

(x–y)

2

n=x(x–y)