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liubo4ka [24]
3 years ago
9

What is the answer 1. 2. 3. 4.

Mathematics
1 answer:
joja [24]3 years ago
3 0

Answer:

Domain of the function f(x) = cos x : ( - infinity , + infinity)

Step-by-step explanation:

Let the given function f(x) = cos x

We need to find the domain set of the given function f(x) = cos x

Domain is the set of all possible value of x for which the function f(x) is defined.

Now, as the given function f(x) is defined for all the real values of x.

Domain of the function f(x) = cos x : ( - infinity , + infinity)

Hence, Domain : ( -∞ , +∞ )

Also, the graph of the given function f(x) = cos x is attached below :

Now, form the graph also we can see the graph of given function f(x) = cos x can attain all the real values starting from -infinity to +infinity

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What is the solution to the system of equations below? -4x+6y=-18 and y=-2x+21
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Step-by-step explanation:

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−4x+6y=−18 and y=−2x+21

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y=−2x+21

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