Question

find the value of (a+b)+¹(a-¹+b-¹)
​

Answer 1

Step-by-step explanation:

Let us consider,

a=

a

−1

+b

−1

a

−1

+

a

−1

−b

−1

a

−1

=

a

1

+

b

1

a

1

+

a

1

−

b

1

a

1

=

a+b

a

ab

+

b−a

a

ab

=

b

2

−a

2

b

2

−ab+ab+b

2

a=

b

2

−a

2

2b

2

∴

a

−1

+b

−1

a

−1

+

a

−1

−b

−1

a

−1

=

b

2

−a

2

2b

2