Question

find the value of a and b in the following equation.
√7-1/√7+1 - √7+1/√7-1 = a+b√7
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Answer 1

Answer:

$\dfrac{\sqrt{7}-1}{\sqrt{7}+1} -\dfrac{\sqrt{7}+1}{\sqrt{7}-1}</p><p>\sqrt{7}</p><p> = a + b</p><p>We have to find, the values of a and b are:</p><p>Solution:</p><p>\dfrac{\sqrt{7}-1}{\sqrt{7}+1} -\dfrac{\sqrt{7}+1}{\sqrt{7}-1}</p><p>\sqrt{7}</p><p> = a + b</p><p>\dfrac{\sqrt{7}-1}{\sqrt{7}+1}\times \dfrac{\sqrt{7}-1}{\sqrt{7}-1} -\dfrac{\sqrt{7}+1}{\sqrt{7}-1}\times \dfrac{\sqrt{7}+1}{\sqrt{7}+1}</p><p> = a + b</p><p>Using the algebraic identity:$