Find the area of domain (no need to solve)
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Find the area of domain (no need to solve)
To find the domain of the given function, we need to determine where the function is undefined due to division by zero. The function in question is:
We identify two fractions: and . Each fraction has a denominator that can potentially cause division by zero:
By excluding these values from the set of all real numbers, we obtain the domain of the function. Therefore, the domain consists of all real numbers except for and .
Thus, the domain of the function is .
\( 2x+\frac{6}{x}=18 \)
What is the domain of the above equation?
The term -6x has no denominator, so it's defined for all real numbers. Only fractions with variables in denominators can create domain restrictions.
This means the function is defined for all real numbers except 0 and 5. You can use any value like x = 1, x = 10, or x = -3, but never x = 0 or x = 5.
No! Domain only depends on where the function is undefined, not on the solutions. You just need to find where denominators equal zero.
That's a common sign error! From , we get x = 5, so the restriction is x ≠ 5. Always solve the equation denominator = 0 carefully.
For this type of rational equation, the domain is never empty. It could be all real numbers only if there were no variables in any denominators, which isn't the case here.
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