Question 659410
{{{(a+b)^(1/2) = (a-b)^(-1/2))}}}
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{{{sqrt(a+b)^2 = 1/(a-b)^(1/2)}}}
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{{{a+b = 1/(sqrt(a-b)^2)}}}
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{{{(a+b) = 1/(a-b)}}}
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(a+b)(a-b) = 1
{{{a^2-ab+ab-b^2) = 1}}}
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{{{highlight_green((a^2-b^2)=1)}}}
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