Question #f8366

2 Answers
Apr 11, 2016

Using arcTan

Explanation:

arctan is used as the opposite to tangent. Use it like this Tan(x)=3.5/20
Arctan(7/40)=x

On a calculator it may be represented as Tan^-1

Apr 12, 2016

x = 9^@93 + k.180^@

Explanation:

Use trig unit circle and calculator -->
tan x = 3.5/20 = 0.175 ---> x = 9^@93
General answer:
x = 9^@93 + k.180^2