How to simplify (1-cos4x) (1-cos2x)
Reduce the power of 2x to X
RELATED INFORMATIONS
- 1. Let f (x) = a × B, a = (2Sin (π / 4), cos2x), B = (sin (π / 4 + x), - √ 3 1. Find f (x) analytic expression 2. Find f (x) period and monotone increasing interval
- 2. 2sin(x-4/π)sin(x+4/π)
- 3. F (x) = - cosx + cos (90-x), if x is in the range of 0 to 90, find the maximum and minimum
- 4. Let a fixed point F (0, m) (M > 0) on the symmetric axis of the parabola x ^ 2 = 2PY (P > 0) be a straight line AB and the parabola intersect at two points a and B, And a (x1, Y1), B (X2, Y2) (X10), the line corresponding to point F, l: y = - m, is called the quasi quasilinear of parabola (1) If x1x2 = - 4m, solve parabolic equation (2) Make a vertical line of "quasi collimator line" L: y = - m through point a (x1, Y1), and the vertical foot is A1. Prove that three points A1, O and B are collinear (o is the origin of coordinates) (3) If the point m is any point on the quasi collimator L, note that the inclination angles of the straight lines Ma, MB and MF are D, e and F in turn. Try to explore the relationship between the cotangents of D, e and F and give the proof
- 5. If the parabola y = ax's square-6x passes through (2,0), what is the distance from the fixed point of the parabola to the origin of the coordinate?
- 6. Let a = {x ㄧ x ^ 2 + 4x = 0, B = {x ㄧ x ^ 2 + 2 (a + 1) x + A ^ 2-1 = 0}. A ∩ B = B, find the value of real number a I'm so tired of the title - do it right for me,
- 7. If the function f (x) = log2 (x2 ax + 3a) is an increasing function on [2, + ∞), then the value range of a is______ .
- 8. Given the complete set u = {x | x2 + 2x-15 > 0}, a = {x | x-4 > 0}, then CUA is
- 9. Given a & # 178; b = 5, then - AB (cubic power of a, b-2a) = if x power of 0.001 = 1 and Y power of (- 13) = - 1 / 27, then X-Y=
- 10. Given the complete set s = R, set a = {x ∧ 2-x-6 < 0}, set B = {x ∩ x + 4 / X-2 > 0}, given C = {x ∩ x ∧ 2-4ax + 3a < 0} to find a ∩ B, a ∩ CSB
- 11. A symmetry axis of the image with the function y = 1 / 2Sin (x / 2 + π / 8) is a straight line
- 12. A symmetry axis of the function y = 2Sin (2x + π / 6)
- 13. A symmetry axis of the graph with function y = 1 / 2Sin (x - π / 3) is a straight line Why is the answer x = - π / 6
- 14. The minimum positive period of the function y = cos (2x tt / 3) + 1 is
- 15. If the function f (x) = sin ω x (ω > 0) increases monotonically in the interval [0, π 3] and decreases monotonically in the interval [π 3, π 2], then ω = () A. 23B. 32C. 2D. 3
- 16. Let K be a monotone increasing interval of Z, y = sin (π / 4 + X / 2) sin (π / 4-x / 2)
- 17. Cos2x / sin (x + 45 °) = 1 / 2, then what is sin2x equal to
- 18. Given that cos2x = - 7 / 8, X belongs to (π / 2, π), find the value of sin (x + π / 6) - sin2x Cos2x = 7 / 8 wrong number
- 19. It is known that the function f (x) is an even function defined on the interval [- 2,2]. When x belongs to [0,2], f (x) is a decreasing function if the inequality f (1-m) is less than f (m) Find the value range of M
- 20. If the function y = sin (1 / 2x-q) is even, then one value of Q is