tan(30)=.5773502692
1.732
tan-1(0.6009) =31.0016578 degrees
10 x tan(51) = 12.349 (rounded) tan(510) = negative 0.5774 (rounded)
When the angle of elevation equals 45 degrees. tan-1(1) = 45 degrees.
B: -tan(25)
cot 115 deg = - tan25 deg
Tan 42 degrees = 0.9004
tan(11o) = 0.19438 =======
tan(22.5)=0.414213562
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(30)=.5773502692
tan(61°) = 1.80405 (rounded)
tan(135 degrees) = negative 1.
tan(-60 degrees) = - sqrt(3)