It is -0.7481
You seem to be unaware of the fact that you could have obtained the answer much more easily and quickly by using the calculator that comes as part of your computer.
cot 115 deg = - tan25 deg
3.13
tan (30 degrees) would be equal to 0.577350269.
If B is 90 degrees, Tan A is BC / AB. But I don't know what you mean by Tan A by 2.
45 degrees?
B: -tan(25)
cot 115 deg = - tan25 deg
Tan 42 degrees = 0.9004
tan(11o) = 0.19438 =======
tan(22.5)=0.414213562
The answer is 0.2867.
it is tan 89.343 degrees
x = tan-1(5) = 78.69 degrees
Tan(5.2 degrees) = 0.0910 Tan(5.2 radians) = -1.8856
tan(61°) = 1.80405 (rounded)
tan(30)=.5773502692
1.732