The first problem f (x) = 3-2x, the second problem f (x) = 1 - (2 / x), the third problem f (x) = The first problem f (x) = 3-2x, the second problem f (x) = 1 - (2 / x), the third problem f (x) = x + (1 / x) and the fourth problem f (x) = X-2 radical X are solved

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• 1. If f '' (x) exists, find the second derivative of function y = f (x + e ^ - x)
• 2. What is the second derivative of F '' (x) and y = (x ^ 2), The answer is 2F '(x ^ 2) + 4x ^ 2F' '(x ^ 2)
• 3. F (x + y) = f (x) f (y), and the derivative of F (0) exists. It is proved that f '(x) = f (x) f' (0)
• 4. Let y = x ^ 2x, find the second derivative of Y
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• 6. Derivative of y = 1-xe ^ y implicit function
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• 10. Derivative of function y = x ^ 2E ^ - x
• 11. Finding the derivative of function f (x) = (x ^ 2-5x + 6) / (x ^ 2 + 1)~
• 12. Find the derivative of the function, and point out the increasing and decreasing range of the function according to the positive and negative of the derivative f（x）= x + 1/x Is the title a little vague? I hope to give some advice and give some answers for my reference Thank you. You must get more points
• 13. Find the derivatives of the following functions, and point out the increasing, decreasing intervals and minima of the functions according to the positive and negative of the derivatives (1)f(x)=lnx+x; (2)g(x)=x(x+1)(x-3) (3)g(x)=x+2sinx (4)u(x)=5-3x+2x^2-x^3
• 14. If a ≥ 0, f (x) = x ^ 2 + ax, let x1 ∈ (- ∞, - A / 2) If a ≥ 0, f (x) = x ^ 2 + ax, let x1 ∈ (- ∞, - A / 2), let y = f (x) be tangent l at point m (x1, f (x1)), and let L and X axis intersection n (x2 (2 is subscript), 0), and o be origin It is proved that X2 (2 is subscript) ≤ X1 / 2 2. If the vector om * vector on > 9A / 16 holds for any x 1 ∈ (- ∞, - A / 2), the range of a is obtained
• 15. High school derivative problem for help ~ f (x) = (x + 1) in (x + 1) Let f (x) = (x + 1) in (x + 1), for any x > = 0, f (x) > = ax holds, find the range of A
• 16. What is the derivative of the cubic root of x2 Find the derivative of the third root of the square root of X, Help me with another topic+_- Find the detailed solution of tangent equation and normal equation at the point (1,1) on the cubic root of curve y = x!
• 17. Given the function f (x) = x ^ 2 * f '(2) + 5x, then f' (2) =? Derivative sequence Using the derivative method may involve the previous sequence All right? Why doesn't f '(2) on the right of the equation change after f (x) is derived
• 18. If the derivative of the function f (x) = x ^ m + ax is f '(x) = 2x + 1, then the sum of the first ten terms of the sequence {1 / F (n)} (n ∈ n +) is
• 19. Let z = f (x + y), then DZ=
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