URGENT! NEED SOMEONE TO PROPERLY CALCULATE FOR DEGREES BECAUSE MY CALCULATOR DOESN'T GIVE RIGHT ANSWER FOR SOME REASON!

tan^-1 (2.3/1.4) = # degrees ( IS NOT 1.02)

tan^-1 (17/39.8) = # degrees ( IS NOT .40)

tan^-1 (4.3/15.1) = # degrees ( IS NOT .27)