Question 1131702
{{{(1-(1-(1-a^2)^(-1)))^(-1/2)}}}


{{{(1-(1-(1/(1-a^2))))^(-1/2)}}}


{{{(1-1-1/(1-a^2))^(-1/2)}}}


{{{(-1/(1-a^2))^(-1/2)}}}


{{{(-(1-a^2))^(1/2)}}}


{{{(a^2-1)^(1/2)}}}{{{OR}}}{{{sqrt(a^2-1)}}}