Let f (x) be an odd function defined in R. when x ≤ 0, f (x) 2x & # 178; - x, find the analytic expression of F (x)

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• 1. Given the function f (x) - ax ^ 2 + BX + C, two zeros are - 1 and 2, and f (5)
• 2. If f (x) = ax ^ 2 + BX + C, then "f (m) f (n)
• 3. If the function f (x) = 4x ^ 2-mx + 5 is an increasing function in the interval [- 2, positive infinity), then the value range of F (1) is
• 4. Given that the function f (x) = 4x2-mx + 5 is an increasing function in the interval [- 2, + ∞), then the value range of M is () A. （-∞，-16）B. （-∞，16]C. （-∞，-16]D. （4，16）
• 5. 2. Given that the function f (x) = 4x ^ 2-mx + 5 is an increasing function in the interval [- 2, positive infinity), then the value range of F (1) is a, ≥ 25B, = 25C, ≤ 25d, I don't understand why x = - B / 2A ≤ - 2, that is, M / 8 ≤ - 2, m ≤ - 16 Why is x = - B / 2A greater than or equal to - 2?
• 6. Given that the function f (x) = 4x ^ 2-mx + 5 is an increasing function in the interval [- 2, negative infinity), then the value range of F (1) is It's on [- 2, positive infinity)
• 7. If the function f (x) 4x ^ 2-mx + 5 is an increasing function on the interval [- 2, + ∞), then f (1) has a range of values
• 8. It is known that the function f (x) = ln (ex + a) (a is a constant) is an odd function on the real number set R, and the function g (x) = λ f (x) + SiNx (λ≤ - 1) is a decreasing function on the interval [- 1,1]; (1) find the value of a; (2) if G (x) ≤ T2 - λ T + 1 is constant on X ∈ [- 1,1], find the value range of T
• 9. If a line y = ex + B (E is the base of natural logarithm) and two functions f (x) = ex, G (x) = LNX have at most one common point, then the value range of real number B is______ ．
• 10. Given the function f (x) = - e ^ x, G (x) = LNX, e is the base of natural logarithm
• 11. Y = f (x) is an odd function defined on R. when x > 0, f (x) = x & # 178; - 2x + 3, find the analytic expression of F (x) on R
• 12. Let f (x) be an odd function defined on R, and when x > 0, f (x) = 2x & # 178; - x, find the expression of F (x)
• 13. It is known that f (x) is an odd function defined on R. when x ≥ 0, f (x) = x & # 178; - 2x, then the expression of F (x) on R is () A.y= x(x-2) B.y=x(│x│+2) C.y=│x│(x-2) D.x(│x│-2)
• 14. The function y = FX is an even function on (negative infinity, positive infinity). When x ≥ 0, FX = x & # 178; - 2x-3, find FX
• 15. It is known that the function y = f (x) is even on R, and when x ≥ 0, f (x) = x & # 178; - 2x ① Find the analytic expression of F (x) when x ＜ 0. ② draw the diagram of F (x) and write the monotone interval of F (x)
• 16. If f (x) = (A-2) x & # 178; + (A-1) x + 3 is an even number, find the value of real number a? Find the monotone increasing interval of function f (x)?
• 17. 2) if the decreasing interval of function y = LG (X & # 178; - 2mx + 3) is (- infinity, 1) and the increasing interval is (3, + infinity), find the value of real number M; ② Find the minimum value of function f (x) = x & # 178; - 2mx + 3, X ∈ {2.4} ~ &# 10084;
• 18. The function f (x) = x & # 178; + 2x-3a, X belongs to [- 2,2] 1, if FX + 2A ≥ 0, it holds. Find the value range of A
• 19. Let f (x) = x ^ 2-2x + 1-k ^ 2, for any x ∈ (0, positive infinity) f (x) > 2k-2, the value range of K is obtained
• 20. The function y is equal to the range of x plus 1 / 2x plus 4