Question

If ab + ba = 17 and a-b= 1 then a, b are
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Answer 1

Answer:

Correct option is

D

0

b

a

+

a

b

=1

ab

a

2

+b

2

=1

a

2

+b

2

−ab=0

Now, a

3

+b

3

=(a+b)(a

2

+b

2

−ab)

a

3

+b

3

=(a+b)×0=0

Step-by-step explanation:

l hope it will help u

Answer 2

Answer:

a=3

b=2

Step-by-step explanation:

3^2+2^3=17

3-2=1