Question 1038362
You mean simplify not solve.
{{{sqrt(1-a^2/b^2)=sqrt(b^2/b^2-a^2/b^2)}}}
{{{sqrt(1-a^2/b^2)=sqrt((b^2-a^2)/b^2)}}}
{{{sqrt(1-a^2/b^2)=sqrt((b-a)(b+a))/b}}}