Substitute and Calculate: Substitute x with 2 in the function x−2x+2. limx→2x−2x+2=2−22+2
Identify Undefined Expression: Calculate the numerator and the denominator separately.Numerator: 2+2=4Denominator: 2−2=0
Analyzing Limit Behavior: We observe that the denominator becomes 0, which means the expression is undefined at x=2. This indicates a potential limit issue, as division by zero is not allowed.
Approaching from Left: Since the denominator is 0, we cannot directly calculate the limit by substitution. We need to analyze the behavior of the function as x approaches 2 from both the left and the right.
Approaching from Right: As x approaches 2 from the left (x < 2), the numerator (x+2) approaches 4, and the denominator (x−2) approaches a number slightly less than 0, making the fraction negative and very large in magnitude.
Limit Does Not Exist: As x approaches 2 from the right (x > 2), the numerator (x+2) approaches 4, and the denominator (x−2) approaches a number slightly more than 0, making the fraction positive and very large in magnitude.
Limit Does Not Exist: As x approaches 2 from the right (x > 2), the numerator (x+2) approaches 4, and the denominator (x−2) approaches a number slightly more than 0, making the fraction positive and very large in magnitude.Since the function approaches a large negative value from the left and a large positive value from the right, the limit does not exist because the left-hand limit and the right-hand limit are not equal.
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