Question

if a = 1/3-√11 and b= 1/a then find a² - b²​

Answer 1

Answer:

hope this helps...

Step-by-step explanation:

3(a+b)

2

−2(a−b)

2

We know,

(a+b)

2

=a

2

+b

2

+2ab

=13+2(6)

=13+12

=25

=>(a+b)=±

25

=>(a+b)=±5

Again,

(a−b)

2

=a

2

+b

2

−2ab

=13−2(6)

=13−12

=1

=>(a−b)=±1

Putting the values, we get,

3(±5)

2

−2(±1)

2

=75−2

=73