which is greater tan 1 or tan inverse 1? and why?

tan^-11 means the angle, which means "pi"/4 or '45' degrees

whereas tan 1 means a numerical value, tan 1= 0.0174 (approx.)

so comparision has no meaning.....

if you want to compare it anyway , let us consider 'pi' as 22/7 , so pi/4 is equal to 0.7857, so tan inverse 1 is greater than tan1