Question

find the domain of f(x)=cosec^(-1)x+cot^(-1)x+tan^(-1)x

Answer 1

Answer:

whats that please follow low me

Answer 2

Answer:

i hope this is the right answer

Step-by-step explanation:

Correct option is

D

{−1,1}

f(x)=cot

−1

x+cos

−1

x+cosec

−1

x

Domain of cot

−1

x=(−∞,∞)

Domain of cos

−1

x=[−1,1]

Domain of cosec

−1

x=(−∞,−1]∪[1,∞)

These function are in addition.

So, we have to take the intersection of all domains.

So, answer is {−1,1}

concept: f(x)=f

1

(x)+f

2

(x)+...+f

n

(x)

domain of f(x)=

Domain of f

1

(x)∩ domain of f

2

(x)

∩ domain of f

n

(x)