Given the function f (x) = 2x-1, find the expression of F (x2) I feel dizzy=

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• 1. Given f (x-1 / x) = x2 + 1 / X2, the expression of function f (x) is
• 2. What is asin (Wx + φ) + B = (ymax + yman) / 2
• 3. It is known that the period of F (x) = asinwx + bcoswx, (W > 0) defined on R is Π, and f (x)
• 4. Let f (x) = asinwx plus bcoswx (W greater than 0) be a function defined on R. Let f (x) be less than or equal to f (12 / 12) = 4 Let f (x) = asinwx plus bcoswx (W greater than 0) be a function defined on R, and f (x) be less than or equal to f (12 / 12) = 4. Let the real numbers X1 and X2 belong to (0, pie), and f (x1) = f (x2) = negative 2, then find X1 plus x2
• 5. It is known that the period of F (x) = asinwx + bcoswx, (W > 0) defined on R is Π, and f (x)
• 6. What is the period of simple harmonic motion related to
• 7. Physical periodic harmonic motion in grade one of senior high school For a spring oscillator, the velocity at t is V, the velocity at t is V, and the direction is the same A. It could be more than a quarter of a cycle B. It could be less than a quarter of a cycle C. It must be less than half a period D. Probably equal to half a cycle Please explain the solution carefully, thank you
• 8. It's a sentence I saw when I was talking about simple pendulum "When the amplitude is small, the period is independent of the amplitude." I feel that this sentence is very confusing. When is the period related to amplitude,
• 9. Harmonic motion The cube block with mass m and side area s is placed on the water surface at rest. Force F to press it into the water for a certain depth, and then remove the external force. The block moves up and down on the water surface. Is the vibration of the block a simple harmonic motion? Give reasons,
• 10. Put a spring on the ground. Now put a small ball on the spring lightly. At this time, the spring will compress. When the elastic force equals the gravity of the small ball, will the small ball still press down? After reaching the lowest point, will the point where the elastic force equals the gravity be taken as the equilibrium position to make a simple harmonic motion? Why not do simple harmonic motion?
• 11. Given that the function f (x) is an odd function and the domain of definition is r, when x > = 0, f (x) = - x2-2x, find the expression of F (x) in the domain of definition
• 12. It is known that the domain of function y = f (x) is R +, f (8) = 3. For any x ∈ R, f (x1x2) = f (x1) + F (x2) conjecture expression Reasonable reasoning content, .' | | / | |/-.( | |\_ ._ \ | | \ \`;| | > |/| | / // | | |// | | \(\ | | `` | | | | | | | | | \\ _ _ \\| \// |//_ _ \// _ ^ `^`^ ^`` `^ ^` ``^^` `^^` `^ `^
• 13. Let f (x) be a periodic function, and the minimum positive period is 2, and f (1 + x) = f (1-x), if - 1
• 14. Whether to use quotation marks in VFP field validity rules and expressions
• 15. Let L = 16, M = 15, NL = 19, n = L-M, the value of the expression n & n-1? What does n & n mean?
• 16. The difference between database table and free table
• 17. What's the difference between free table and database in VFP? How many parts does a table consist of? What are the steps to create a table?
• 18. As shown in the figure, in the plane rectangular coordinate system, the image of quadratic function y = x + BX + C intersects with X axis and points a and B, point a is on the left side of the far point, the coordinate of point B is (3,0), intersects with y axis and points c (0, - 3), and point P is a moving point on the parabola below the straight line BC 1. Find the expression of this quadratic function 2. Connect Po and PC, and fold △ POC along CO to get quadrilateral pop ˊ C. is there a point P to make quadrilateral pop ˊ C diamond?
• 19. Given that M belongs to R, f (x) = (m-1) x ^ 1 / M is a power function. (1) the expression for finding f (x): (2) if f (2-A ^ 2) ≥ f (a), find the value range of real number a
• 20. 9 (X-Y) ^ 2 + m + 4 is a complete square expression, and M expression is obtained