Question

$\tan 1 \ or \ \tan^{-1} \ who \ is \ greater??$

Answer 1

tan⁻¹ is the angle and it is λ/4 or 45 degrees

and tan¹ is a numerical value which is 0.0174 approx

the comparison is not appropriate as both the values are different. But by solving tan⁻¹ the value is 0.7857 
so tan⁻¹ is greater than tan¹