1.

A/b+b/a=2 then a3-b3=​

Answer»

ANSWER:

(a-b)(3ab)

Step-by-step EXPLANATION:

\frac{a}{b} +\frac{b}{a} =2\\

\frac{a^{2}+b^{2} }{ab} =2

a^{2} +b^{2} =2ab

We have to FIND  a^{3} -b^{3}

we KNOW,

a^{3} -b^{3} =(a-b)(a^{2} +b^{2} +ab)

a^{3} -b^{3}= (a-b)(2ab+ab)

a^{3} -b^{3}= (a-b)(3ab)


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