Math Problem Statement
solve gradient of the tangent line of lnx that passes a point (-2,-1)
Solution
To solve for the gradient (slope) of the tangent line to the curve that passes through the point , let’s break this into clear steps:
1. The function and its derivative
The gradient of the tangent line is determined by the derivative of :
2. Issue with for negative
The natural logarithm function is only defined for . Since the given point has , cannot be evaluated at this point. Therefore, there is no tangent line to that passes through this point.
Clarification:
If this was a misinterpretation, and the intention is to find the tangent to another curve (or confirm the problem setup), please clarify.
Would you like to adjust the problem statement, or should I assist further in refining this calculation?
Related Questions:
- How is the natural logarithm function defined and restricted?
- Can tangent lines pass through points outside the domain of the original function?
- What is the slope of a tangent to at a positive -coordinate?
- How can we extend to complex numbers and explore tangents?
- What are the implications of domain and range in logarithmic functions?
Tip:
Always verify the domain of a function before working with tangent lines or evaluating points!
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Math Problem Analysis
Mathematical Concepts
Calculus
Logarithmic Functions
Tangent Lines
Domain and Range
Formulas
y = ln(x)
y' = 1/x
Theorems
Definition and Domain of Natural Logarithmic Function
Suitable Grade Level
Grades 11-12
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