Question

If y =√+2 +√−2 / √+2− √−2, prove that b^2 – ay + b = 0

Answer 1

As we know that

(a+b)2=a2+b2+2ab,(a−b)2=a2+b2−2ab

Given (x2+y2)(a2+b2)=(ax+by)2

x2(a2+b2)+y2(a2+b2)=(ax)2+(by)2+2(ax)(by)

⟹a2x2+b2x2+a2y2+b2y2=a2x2+b2y2+2abxy

⟹b2x2+a2y2=2abxy

⟹(bx)2+

Answer 2

Step-by-step explanation:

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