Answer:

Step-by-step explanation:
<u>Step 1: Set x to 4 and set y to -5</u>
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Answer: 
Answer:
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You can use the expression: New Salary = (120/100) * X
You could also simplify 120/100 to 6/5
The limit does not exist.
cos is continuous, so we have

but
• 1/x approaches +∞ as x approaches 0 from above
• 1/x approaches -∞ as x approaches 0 from below
hence the two-sided limit does not exist.