Question

find the value of a and b if root3-1/root3+1 + root3+1/root3-1 = a+b root3

Answer 1

Solition

3

+1

3

−1

=a+b

3

3

+1

3

−1

×

3

−1

3

+1

=a+b

3

3−1

(

3

−1)

2

=a+b

3

2

3+1−2

3

=a+b

3

2−

3

=a+b

3

∴a=2 b=−1

solution