Question

$X(x-1)-y(y-1)$X(x-1)-y(y-1)

Answer 1

Answer:

The answer is (x-y)

Explanation:

(

x

y

)

−

(

y

x

)

(

1

x

)

−

(

1

y

)

On further solving this problem we get,

x

2

−

y

2

x

y

x

+

y

x

y

Now dividing both the sides we get,

x

y

as cancelled from both the numerator and denominator.

(

x

+

y

)

(

x

−

y

)

x

+

y

Cancelling

x

+

y

from both numerator and denominator we get,

Ans. =

(

x

−

y

)