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secondary 3 | A Maths
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Date Posted: 2 years ago
Views: 210
The issue here is that the number of terms itself is also an unknown (x). This is itself a function.
Our differentiation result for k f(x) holds only when k is a constant.
In other words, x f(x) does not differentiate to x f'(x).
Our differentiation result for k f(x) holds only when k is a constant.
In other words, x f(x) does not differentiate to x f'(x).
Anyway, the division step is also incorrect, or at least flawed in reasoning. Solving If x = 2x, then x - x = 2x - x, or 0 = x. This will be the only solution to the equation x = 2x, so dividing both sides of the equation by x is akin to dividing both sides by zero. Division by zero is undefined.
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Hope this helps
Date Posted:
2 years ago
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