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Let f(x) = sqrt(x ^ 2 + 2x + 1) - sqrt(x ^ 2 - 2x + 1) then value of f(- 5/4) + f(3/4) + f(7/4) is equal to

Answer» Let f(x) = sqrt(x ^ 2 + 2x + 1) - sqrt(x ^ 2 - 2x + 1) then value of f(- 5/4) + f(3/4) + f(7/4) is equal to


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