How to find the derivative of LN [x] ^ 2 Known function f [x] = XLN [x ^ 2] {x

Is it the square of the whole? If it is
2lnx

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2. If three points a (2,2), B (a, 0), C (0, b) (AB ≠ 0) are collinear, then the value of 1A + 1b is equal to______
3. What's the difference between subtracting 73 from the reciprocal of 53 and 13?
4. The number of divisors of a number is (?), and the smallest divisor is (?)
5. lim2^n +3^n/2^n+1+3^n+1
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10. What's the difference between subtracting the quotient of 5 / 4 divided by 1 / 3 from the reciprocal of 5 / 3?
11. How to calculate the determinant {1123} {123-1} {3-1-1-2} {23-1-1}
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