The minimum positive period of the function y = radical (COS ^ 4 x / 2 - cosx) is__________

RELATED INFORMATIONS

• 1. Y = the minimum positive period of the radical (COS ^ 4 (x / 2) - cosx)
• 2. The minimum positive period sum of the function y = cos (3 π / 2-x) cosx is
• 3. (1) Given 0 ＜ x ＜ π / 2, cosx = 4 / 5, then TaNx = (2) function y = cos (3 π / 2 - x) / cos (3 π - x) minimum positive period is
• 4. The specified sign "*" represents an operation, that is, a * b = AB + A + B, a, B are positive real numbers, and 1 * k = 7 is known, then the range of function f (x) = k * x is______
• 5. If 1 Δ k = 3, then the range of function f (x) = k Δ x is
• 6. It is known that x belongs to. 0 to 2. What is the range of SiNx + cosx of function y = root 3 times The answer should be - 1 to root 3. I feel that the following two are not right. Who can tell me
• 7. The product of (x + 1) (X & # 178; + - 5AX + a) does not contain X & # 178; if the term a = () M & # 178; + M-1 = 0, then M & # 179; + 2m & # 178; + 2013 = () (- 2) to the power of 2012 + (- 2) to the power of 2013 = then the questions and answers of the types frequently tested in the examination and the various types frequently explained in detail must be at least 6
• 8. Factorization of mathematics in Grade Seven
• 9. If a, B and C are the three sides of a triangle, and a & # 178; + B & # 178; + C & # 178; = AB + BC + Ca, try to judge the shape of the triangle and explain the reason
• 10. Intelligence arithmetic 1\5\5\5 Addition, subtraction, multiplication and division are equal to 24 or - 24
• 11. The minimum positive period of the function y = cosx · cos (x - π / 3) is? Process urgent!
• 12. The period of y = cos absolute value x and y = cos absolute value x
• 13. Find the value of F (x) = cos ^ 2-2sinxcosx-sin ^ 2x X which belongs to [0, π / 2] Answer in an hour
• 14. 2Sin ^ 2x + cos ^ 2Y = 1, find the value range of sin ^ 2x + cos ^ 2Y
• 15. If a point on the terminal edge of angle α is (2x-3,4-x), and sin α cos α
• 16. If sin ^ 2x is greater than cos ^ 2x, then the value range of X is Make the unit circle and the straight line y = x.y = - x on the rectangular axis, and then do it according to the definition of triangle?
• 17. Given the vector a = (cos3 / 2x, SIN3 / 2x), B = (cosx / 2, - SiNx / 2), and X belongs to [π / 2, π],. | a + B | is greater than the root sign 3, find the value range of X
• 18. For the image with root cos x, all the points on the image with root cos (2x + π / 4) are needed
• 19. If cos ^ 2 x = - cosx under the root sign, then the value range of X
• 20. If sin square x-cos square x is larger than cosx SiNx, and X belongs to (0,2), then the value range of angle X is