Q. Letg(x)={ex−e−x for x≤−1 for x>−1Is g continuous at x=−1 ?Choose 1 answer:(A) Yes(B) No
Check Left-Hand Limit: To determine if g(x) is continuous at x=−1, we need to check if the left-hand limit, the right-hand limit, and the value of the function at x=−1 are all equal.
Find Right-Hand Limit: First, let's find the left-hand limit as x approaches −1 from the left. Since for x≤−1, g(x)=ex, the left-hand limit is e−1.
Calculate Function Value: Now, let's find the right-hand limit as x approaches −1 from the right. For x > -1, g(x)=−e−x, so the right-hand limit is −e−(−1) which simplifies to −e1.
Compare Limits and Value: Next, we need to find the value of the function at x=−1. Since x=−1 falls in the first case of the piecewise function where x≤−1, g(−1)=e−1.
Conclusion: Now we compare the left-hand limit, right-hand limit, and the value of the function at x=−1. The left-hand limit is e−1, the right-hand limit is −e1, and the value of the function at x=−1 is e−1.
Conclusion: Now we compare the left-hand limit, right-hand limit, and the value of the function at x=−1. The left-hand limit is e−1, the right-hand limit is −e1, and the value of the function at x=−1 is e−1.Since the left-hand limit e−1 is not equal to the right-hand limit −e1, the function g(x) is not continuous at x=−1.