Mx-a = 3x-b (M is not equal to 3)

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• 9. Some math problems, help me look at it If the minimum positive period of the function y = cos & sup2; Wx Sin & sup2; Wx is 4 π, then the value of the positive number W is 2. The function f (x) satisfies the condition f (x + 2) = 1 / F (x) for any real number X. if f (1) = - 5, then f (f (5)) = In order to stabilize the market and increase farmers' income, the market purchase price a of an agricultural product is related to its market purchase price in the first three months, and the sum of squares of the difference between a and its market purchase price in the first three months is the smallest Month 1 2 3 4 5 6 7 Price (yuan / Dan) 68 78 67 71 72 70 The market purchase price of the product in July should be A. 69 yuan B. 70 yuan C. 71 yuan D. 72 yuan Need detailed process.. okay
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• 12. The complete set u = AUB = {1.3.5.7.9}, an (cub) = {3.7}, and (CUA) NB = {5.9} is known=
• 13. Let u = R, a = {x | x ≠ 1}, then CUA=
• 14. If a = {X / x = a + B = ab-3, a, B ∈ (0, + ∞)} complete set u = R, then CUA=
• 15. Let u = {x | X be less than or equal to 5, and X belong to n *}, a = {x | x ^ 2-5x + q = 0}, B = {x | x ^ 2 + PX + 12 = 0}, and (CUA) UB = {1,2,3,4,5} Finding p q Is the question wrong? It's impossible,
• 16. Let u = R, a = {x | x2-5x-6 = 0}, B = {x | - a ＜ X-5 ＜ a}, and 11 ∈ B, why (CUA) UB = R
• 17. Suppose 1 = 5, 2 = 6, 3 = 7, 4 = 8, 5 =? Additional questions: 10 =? Intelligence questions It's all about intelligence. It's not that simple
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• 19. 3 * 3-1 * 1 = 8 * 1 5 * 5-3 * 3 = 8 * 2 7 * 7-5 * 5 = 8 * 3... How to describe and prove such a rule in words 3 * 3-1 * 1 = 8 * 1 5 * 5-3 * 3 = 8 * 2 7 * 7-5 * 5 = 8 * 3... How to describe and prove such a rule in words?
• 20. Mathematical problems (- 8.2) + 10 + 2 + (- 1.8), (0.8) + (0.7) + (- 2.1 = 0.8 + 3.5) 1 / 4 + (- 2 / 3) + 4 / 5 + (- 1 / 4) + (- 1 / 3) in addition, who has the answer to the mathematics exercise book of the second semester of grade 6? I want 5.5.6 from Shanghai OK, I'll give 100. If I can't play that much, it's 5.4