Find the monotone increasing interval of function y = cos (2x - π / 4)!

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• 1. The monotone increasing interval of the function y = 2cos (π / 3-x / 2) is?
• 2. Finding monotone increasing interval of function y = cos (x / 2 - π / 3), X ∈ [- 2 π, 2 π]
• 3. The monotone increasing interval of function y = (12) - x2 + X + 2 is:___ ．
• 4. Why does the monotone increasing interval of function y = sin (π / 3-1 / 2x), X ∈ [- 2 π, 2 π] have union,
• 5. This paper points out the monotone interval of the function f (x) = (x ^ 2 + 4x + 5) / (x ^ 2 + 4x + 4), and compares the magnitude of F (- π) and f (1)
• 6. The monotone increasing interval of function y = - x ^ 2 + 4x-7, X ∈ (- 1,3) is
• 7. Let f (x) = x ^ 3-6x + 5 If the equation f (x) = a about X has three different real roots, we can find the value range of real number a
• 8. Let a ∈ R, f (x) = ax3-3x2. (I) if x = 2 is the extreme point of y = f (x), find the value of a; (II) if G (x) = f (x) + F '(x), X ∈ [0, 2], get the maximum value at x = 0, find the value range of A
• 9. The known function f (x) = [3x2-4, x > 0; π, x = 0; 0, X
• 10. How many monotone increasing intervals of function y = 1 / (3x ^ 3) - 3 (x ^ 2) + 5x
• 11. Monotone increasing interval of function y = ax + B / X (a > 0, b > 0)
• 12. Is f (x) = X4 power - 3x2 power + 5 an odd function or even function, non odd non even or both odd and even?
• 13. It is known that the image of y = (a + 3A + 2) x + (a + 1) x + 0.25 and X-axis always have focus (a is a constant) 1. The range of value of a is obtained. 2. Let the graph of function be There are two different focal points a (x1,0) B (x2,0) between the image and the x-axis. When 1 / 1 of X1 + 1 / 2 of x2 = the square-3 of a, the value of a is obtained
• 14. The function f (x) defined on the interval (- 1,1) is a decreasing function, and f (1-A)
• 15. Let a ∈ {1,2,3,4} and B ∈ {2,4,8,12}, then the probability that f (x) = X3 + ax-b has zero in interval (1,2) is () A. 12B. 58C. 1116D. 34
• 16. In the interval [0,2], take two numbers a and B randomly, then the probability of zero free function f (x) = x2 + ax + B2 is______ ．
• 17. If the function y = (log12a) x is an increasing function on R, then the value range of a is () A. （0，12）B. (0，12]C. (12，+∞)D. （1，+∞）
• 18. Given f (x) = x + A / X (a > 0), find the monotone interval of F (x) 55555555555…… TT）
• 19. The monotone interval of - x ^ 2 + X + 2 is () A、[-1,1/2] B、(-∞ ,-1] C、[2,＋∞)D、[1/2,2]
• 20. If the domain of F (X & # 178;) is [1,2], what is the domain of F (x)