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asksia_official's Question
Math
Posted 4 months ago
What is the formula for finding the critical points of a function in calculus
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Answer from Sia
Posted 4 months ago
Solution by Steps
step 1
To find the critical points of the function f(x)=x33x+1f(x) = x^3 - 3x + 1, we first need to find its derivative
step 2
The derivative of f(x)f(x) is f(x)=3x23f'(x) = 3x^2 - 3
step 3
Set the derivative equal to zero to find the critical points: 3x23=03x^2 - 3 = 0
step 4
Solve the equation 3x23=03x^2 - 3 = 0 for xx
step 5
Divide both sides by 3 to get x21=0x^2 - 1 = 0
step 6
Factor the equation: (x1)(x+1)=0(x - 1)(x + 1) = 0
step 7
Solve for xx: x=1x = 1 and x=1x = -1
Answer
The critical points of the function f(x)=x33x+1f(x) = x^3 - 3x + 1 are x=1x = 1 and x=1x = -1.
Key Concept
Critical Points
Explanation
Critical points of a function occur where its derivative is zero or undefined. In this case, the derivative f(x)=3x23f'(x) = 3x^2 - 3 is set to zero and solved for xx.

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