Let f (x) = sin (Wx + 2 π / 3) + sin (wx-2 π / 3) (W > 0) have the minimum positive period of π, and find the monotone interval of the function?

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• 1. Given that the minimum positive period of the function y = sin (Wx + quarter π) (W > 0) is 2 / 5 π, then w is equal to A 5 b 5 π C 5 / 4 D 5 / 2
• 2. Given the function FX = 2Sin (Wx + 6 / π) (W > 0), if the shortest distance between the image of the function FX and the two adjacent intersections of the line y = √ 2 is equal to π, then= The answer is half. I want to know why
• 3. The known function f (x) = 2Sin (Wx + a) (a > 0, - π / 2)
• 4. Given the function f (x) = a * B, where a = (2sinwx, - 1), B = (2Sin (2pai / 3-wx), 1) w > 0, the abscissa of the intersection of the image of F (x) and the straight line y = - 2 is in a linear relationship An arithmetic sequence with tolerance Pai (1) Finding the analytic expression of F (x) (2) If a = root 3, B + C = 3, f (a) = 2, the area of triangle ABC is obtained
• 5. Given the function f (x) = 2Sin (ω x + π / 4) (ω > 0), the distance between the image of y = f (x) and two adjacent intersections of the line y = 2 is equal to π 1. Find the analytic expression of F (x); 2. Find the f (x) symmetry axis equation and monotone interval; 3. Find the maximum and minimum of F (x) in the interval [- π / 4, π / 2]
• 6. What are the removable discontinuities of the function f (x) = (X & # 178; - x) / sin π x? 4. The number of disjoint points of function f (x) = (X & # 178; - x) / sin π x is: () (A) 1 (b) 2 (c) 3 (d) infinite
• 7. F (x) = (x ^ 3-x) / sin π x, how many discontinuous points can we find
• 8. How to find the discontinuous point of function, such as f (x) = (x ^ 3-x) / sin π x, find the How to find the discontinuous point of function, such as f (x) = (x ^ 3-x) / sin π x, find the discontinuous point of function
• 9. Given the function f (x) = 2-sin & # 178; X, the period of the function is
• 10. The minimum positive period of the function f (x) = sin2 (2x - π 4) is______ ．
• 11. The distance between the intersection points of the two adjacent branches of the image of the line y = 2 and the function y = Tan (2x - π / 3) is?
• 12. If the image of function y = sin (2x + π / 4) and y = m have infinite number of common points, and the distance between any two adjacent common points is the same, then a value of M is
• 13. It is known that the function f (x) = sin (ω x + ϕ) (ω > 0, 0 ≤ ϕ≤ π) is even function, and the distance between two adjacent highest points on the image is 2 π. (I) find the analytic expression of F (x); (II) if α∈ (− π 3, π 2), f (α + π 3) = 13, find the value of sin (2 α + 5 π 3)
• 14. Given the function f (x) = sin (2 ω X - π / 6) - 4sin ^ 2 ω x + 2 (ω > 0), the distance between the two highest points of the image is π, Supplement: 1. Find monotone interval and increasing interval of function f (x); 2. Find the range of function f (x) on [0, π / 2]
• 15. Given the function f (x) = sin (Wx + φ) (W > 0, - π / 2 ≤≤ π / 2), the distance between two adjacent highest and lowest points on the image is 2 √ 2 If f (x) passes through point (2, - 1 / 2), then f (x)=
• 16. Thank you very much········ 1. In rectangles of the same size, use shadows to represent one third, two sixths and nine thirds. Can you find any relationship between them 2. Use 1,2,3,4 to form four fractions. The molecules of the four fractions are the same and the denominators are different. Compare their sizes 3. Fill in the appropriate score in brackets 24 min = () H 70 cm = () m 327 g = () kg 163 square decimeters = () square meters 15 minutes = () hours 235 kg = () tons 4. If the fractional unit is one in fifteen, the maximum true fraction is (), plus () such fractional units is the minimum prime number; if the minimum false fraction is (), plus () is the minimum composite number 5. The denominator of a fraction is four times more than the numerator. 3. The sum of numerator and denominator is 23. What is the fraction?
• 17. The original price of a TV set is 3500 yuan / set. During the Spring Festival, shopping malls carry out promotional activities, reducing the price by 7 / 1, and increasing the price by 4 / 1 after the activities. How much is the current price of this kind of TV
• 18. In a triangle area ABC, where ∠ C = 90 ° and edge AB = 8m, BC = 6m, a rectangular pool defg is built in △ ABC, De is on AB, and DG = x is set. When x is, the pool defg area s is the largest
• 19. Honghong and Mingming had a math competition. They agreed to give 20 points for one right question and 12 points for one wrong question. Honghong and Mingming each calculated 10 questions and their total score was 208. Honghong got 64 points more than Mingming. How many questions did Honghong and Mingming get right?
• 20. Answers to the supplementary exercises of Jiangsu Education Press