Question

Find the domain of each function. (Enter your answer using interval notation.) \text { (a) } f(x)=\frac{25-e^{x^{2}}}{1-e^{25-x^{2}}} \text { (b) } \quad f(x)=\frac{9+x}{e^{\cos (x)}}

Fig: 1

Fig: 2

Fig: 3