The domain of tangent function in radian measure would be all angles except [math]\frac{}{2}[/math], since the value of [math]y=tan(x)[/math] is u But if we limit the domain to \( ( -\dfrac{\pi}{2} , \dfrac{\pi}{2} ) \), blue graph below, we obtain a one to one function that has an inverse which cannot be obtained algebraically. Consider a unit circle with points O as the center, P on the circumference, and Q inside the The domain of tangent function is option D, x 20.The tangent function is odd and increasing, option A 21 View the full answer Tangent. From the list of given functions, only function g(x) is undefined at . The graph of the secant function looks like this: The domain of the function y = sec ( x ) = 1 cos ( x ) is again all real numbers except the values where is equal to , that is, the values 2 + n for all integers . Inverse functions swap x- and y-values, so the range of inverse cosine is 0 to and the domain is 1 to 1. not defined at odd multiples of /2 as the length of the base in a right This means that, we determine the function that would be undefined when the input value equals . For example, let tan x = 1. The domain and range of a function is the set of all possible inputs and outputs of a function respectively.The domain and range of a function y = f (x) is given as domain= {x ,xR }, range= {f (x), xDomain}.The domain and range of any function can be found algebraically or graphically. Enter your queries using plain English. For example: f (1)=1+1=2f (5.5)=5.5+1=6.5f ()=+1. Tangent only has an inverse function on a restricted domain,

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