All math areasFunctions, function notation and evaluation
Problem 1 of 23fun-001
For the function , what is the value of ?
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Solution walkthrough1:40
- A function is a rule. means: put into the rule in place of every .
- Replace each with , keeping the parentheses: .
- Powers come first: . The minus sign in front stays, giving .
- Multiply: . Then add from left to right: .
- Traps: and each make one sign mistake, and makes both.