Answer:
\(\text{Domain of f(x)=cosx is} (-\infty,+\infty)\)
\(tan(-180)=0\)
Range of f(x)=sin(x) is−1≤y≤1
Step-by-step explanation:
Given the function f(x)=cos(x)
we have to find the domain of function f(x)=cosx.
The domain of a function is the complete set of possible values of the independent variable. Here, cosx is defined at all the values of x therefore,
\(\text{Domain of f(x)=cosx is} (-\infty,+\infty)\)
Now, we have to find the y value of tan(x) when x=-180
\(tan(-180)=\frac{sin(-180)}{cos(-180)}=\frac{0}{-1}=0\)
The range of a function is the complete set of all the possible resulting values i.e all y-values.
Range of f(x)=sin(x) is−1≤y≤1
