arc tangent (1/x). Thus cot^(-1)(X)= tan^(-1)(1/X), Be careful. Since it is a multivariate function, some authors define the principal branch in the domain [0, PI], while others define the domain on [
...160; the only whole number you can use are -1,0 and 1. This due to the fact that the domain of these functions is the closed interval [-1,1]. Any value outside that interval will trigger an error ...
...160; [SIN^-1], [COS^-1] or [TAN^-1]. To calculate the inverses of trigonometric functions ( arc sine, arc cosine, arc tangent) you press [2nd] followed by the relevant trigonometric function key For ...
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...This latter means that the tangent of 46.8 is 40/37.5 . You can see on the images below graphs160;of the function y=tan x and y=arc tan x and calculations for your problemy=tan xy=arc tan ...
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