What is the cubic C of quadratic B of negative 6A plus the cubic C of 2Ab

-6A square B cubic C + 2Ab cubic
=-2Ab tripartite (3ac-1)

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1. Let f (x) be an odd function on R, and f (x + 2) = negative f (x). When x is greater than or equal to 0 and less than or equal to 1, f (x) = x, then what is f (7.5) equal to
2. F (x) is an odd function on R, f (x = 2) = - f (x) when x is greater than or equal to 0 and less than or equal to 1, f (x) = x, f (7.5) =? F (x) is an odd function on R, f (x + 2) = - f (x) when x is greater than or equal to 0 and less than or equal to 1, f (x) = x, f (7.5) =?
3. Let f (x) be an odd function on (- ∞, + ∞), f (x + 2) = - f (x). When 0 ≤ x ≤ 1, f (x) = x, then f (7.5) is equal to Why ∵ f (x + 2) = - f (x), ∵ f (x + 4) = f (x) ∵ f (7.5-8) = f (- 0.5)? Answer!
4. Let f (x) be an odd function on R, and f (x + 2) = - f (x). When 0 ≤ x ≤ 1, f (x) = x, then f (4.5) is equal to?
5. Let f (x) = 2x / (5x + 1) (x ∈ R, and X is not equal to - 1 / 5) Find: 1 inverse function F-1 (x); The range of 2F-1 (1 / 5) and F-1 (x)
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