Question

tan(arctan7/25)

Answer 1

this is a site that can help u http://www.wolframalpha.com

Answer 2

.28

Answer 3

tan of arctan undoes the arctan

so 7/25 is the answer.

Answer 4

arctan(7/25) means give me the angle whose tangent is 7/25

and
tan ( the angle whose tangent is 7/25) is 7/25