Question

1+root 7÷1-root 7
what's the answer​

Answer 1

a=0 and b=

\frac{-2}{3}

The given equation is:

\frac{\sqrt{7}-1}{\sqrt{7}+1}-\frac{\sqrt{7}+1}{\sqrt{7}-1}=a+b\sqrt{7}

\frac{(\sqrt{7}-1)^{2}-(\sqrt{7}+1)^{2}}{7-1}

\frac{-4}{6}\sqrt{7}

\frac{-2}{3} \sqrt{7}

\frac{7+1-2\sqrt{7}-7-1-2\sqrt{7}}{6}

Now, comparing with the RHS of the given equation, we get

\frac{-2}{3}

a=0 and b=

Answer 2

Step-by-step explanation:

explained in the picture up above