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Chain Rule, Log Differentiation & Rate of Change · Question 83 of 130

What is the slope of y = x^x at x = 1?

Question 83

EasyOriginal question

Let y=xxy = x^{x} for x>0x > 0.

What is the slope of y=xxy = x^{x} at x=1x = 1?

Options for question 83

Show the answer and explanation
CorrectNot quiteAnswer B

Correct answer: B

Explanation

  1. 11(1+log⁡1)=1×11^{1}(1 + \log 1) = 1 \times 1.

  2. 1.

Worth noting

0 keeps log⁡1=0\log 1 = 0 and forgets the 1 beside it.

Concept
Logarithmic differentiation at a point
Typical time
90 s
Your time
—
The rule this testsLogarithmic differentiation
Practise this chapter →

Ten questions from Chain Rule, Log Differentiation & Rate of Change, at your own pace.

Practise this chapter →

Ten questions from Chain Rule, Log Differentiation & Rate of Change, at your own pace.