Question

Write the function tan^−1(√1+x^2−1)/x,x≠0, in the simplest form.

Answer 1

solution

=tan∧-1(√1 + x² -1)/x

=tan∧-1(1+x²-1)/x

=tan∧-1(1/x+x²/x-1/x)

=tan∧-1(x²/x)

=tan∧-(x)