The tangent equation of curve y = x3-2x2-4x + 2 at points (1, - 3) is () A. 5x+y+2=0B. 5x+y-2=0C. 5x-y-8=0D. 5x-y+8=0

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• 1. Find the tangent and normal plane equation of curve y ^ 2 = 4x, z = 2x ^ 2 at point x = 1 I don't know whether to solve the plane equations of the two equations separately or whether the two equations are the same equation?
• 2. Finding function derivative y = e ^ sin2x
• 3. If the domain of function f (x + 1) is [0,1], then the domain of function f (3x-1) is [0,1]______ ．
• 4. Given that f (x) = 1 / root x 2 + ax + A-1 is defined as (- ∞, 1-A) ∪ (- 1, + ∞), the value range of a is obtained
• 5. If f (x) is an increasing function in the domain [- 1.1], and f (X-2) > F (1-x), then the value range of X is
• 6. Given that y = f (x) is a decreasing function in the domain (- 1,1), and f (1-A) < f (3a-1), then the value range of a is
• 7. Given the function f (x) = lg1-x / 1 + X, 1. Find the definition domain of the function 2. The value range of X that makes f (x) > 0 Let f (x) = 1-2 to the power of X + 2 / 1, find the range of function value
• 8. (1 / 2) it is known that f (x) is an even function defined on R, and for any x belonging to R, f (2 + x) = f (2-x). When x belongs to [0,2], f (x) = 3x + 2 (1 / 2) it is known that f (x) is an even function defined on R, and for any x belonging to R, f (2 + x) = f (2-x). When x belongs to [0,2], f (x) = 3x + 2, find f (x)
• 9. It is known that f (x) is an even function defined on R, and for any x belonging to R, f (x + 2) = f (X-2). When x belongs to [0,2], f (x) = 3x + 2, find the analytic expression of F (x) on [4,0]
• 10. It is known that the function f (x) is an even function defined on R. when x is greater than 0, f (x) = x * x + 3x-1, the analytic expression of F (x) is obtained
• 11. If a tangent of the curve f (x) = x ^ 2 - 1 is parallel to the straight line y = 4x - 3, the tangent equation is obtained
• 12. The tangent equation of the curve y = X3 + X-2 parallel to the straight line y = 4x-1 is () A. 4x-y = 0b. 4x-y-4 = 0C. 4x-y-2 = 0d. 4x-y = 0 or 4x-y-4 = 0
• 13. The tangent equation of the curve y = X3 + X parallel to the straight line y = 4x-1 is () A. 4x-y = 0b. 4x-y + 2 = 0 or 4x-y-2 = 0C. 4x-y-2 = 0d. 4x-y = 0 or 4x-y-4 = 0
• 14. A tangent equation of the curve y = x ^ 2 is 4x-y-4 = 0, and the tangent coordinates are obtained
• 15. In the tangent of the curve y = X3 + X-2, the tangent equation parallel to the straight line 4x-y = 1 is () A. 4x-y = 0b. 4x-y-4 = 0C. 2x-y-2 = 0d. 4x-y = 0 or 4x-y-4 = 0
• 16. Find the tangent equation of the curve y = 4x-x ^ 2 at point B (1,3)
• 17. The tangent equation of curve y = Xe ^ x + 2x + 1 at point (0,1) is
• 18. The tangent equation of curve y = xex + 2x + 1 at point (0,1) is () A. y=-3x+1B. y=3x+1C. y=2x+2D. y=-2x+2
• 19. The tangent equation of the curve y = xex at x = 1 is___ ．
• 20. If f (x) - G (x) + X & sup2;, the tangent equation of curve Y-G (x) at point (1, G (1)) is y = 2x + 1 Let f (x) = g (x) + X2, the tangent equation of curve y = g (x) at point (1, G (1)) be y = 2x + 1, then the tangent equation of curve y = f (x) at point (1, f (1)) is y = 2x + 1-----