![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
If the equation SiNx cosx = m about X has no real number solution, then the value range of real number m is
SiNx cosx = M1 + 2sinxcosx = m ^ 2Sin (2x) = m ^ 2 - 1 because sin (2x) belongs to [- 1,1], so m ^ 2 - 1 belongs to (- infinity, - 1) U (1, + infinity) m ^ 2 > = 0, m ^ 2 - 1 > = - 1, so m ^ 2 - 1 belongs to (1, + infinity) m ^ 2 belongs to (2, + infinity) m belongs to (- infinity, - root 2) U (root
RELATED INFORMATIONS
- 1. Given a = x3-5x2, B = x2-11x + 6, find the value of a-2b
- 2. Solving special higher order equations X^3-3x^2+x+2=0 If the equation x ^ 3-4x ^ 2 + AX = 0 has and only has one real root, what is the value range of a That's the problem
- 3. If x + y + xy = 8y + Z + YZ = 15z + X + ZX = 35, then x + y + Z + XYZ=______ ．
- 4. Higher order equation x³﹢6x²﹢3x-10=0
- 5. Solution of higher order equation The higher order equation x ^ 4 + 24x ^ 3 + 70X ^ 2-1176x-7056 = 0 is solved
- 6. A higher order equation of grade two X quartic power - 2008x power + 2009x-2008 = 0 The answer is x = (- 1 plus minus root 8033) / 2
- 7. Mathematics -- solving higher order equation of one variable The third power of X - the square of 3x + X + 2 = 0 Let f = (x) = the third power of X - the square of 3x + X + 2 ∵f(2)=8-3*4+2+2=0 X-2 is a factor of the square + X + 2 of the cubic power - 3x of polynomial X (I understand here) The original equation can be solved as: (X-2) (the square of x-x-1) = 0 (I want to know how to push this step out and how to get the result at once. I hope you can give me a detailed and understandable answer.)
- 8. On the equation of X (M2 - 4) x & # 178; + (M + 2) x + (M + 1) y = m + 5, when m = is a one variable linear equation, when m = is a two variable linear equation
- 9. When m is a value, the equation (M & # 178; - 1) y & # 178; + (M + 1) y + (M + 4) x = m + 3 is a univariate linear equation. When m is a value, the original equation is a bivariate linear equation
- 10. The equation (M & # 178; - 4) x & # 178; + (M + 2) x + (M + 1) y = m + 5 about X is known? (2) What is the value of M?
- 11. The square root of 1.96 is? Because the square of? Is equal to 1.96, and?
- 12. There are six cards with the number 123456. If you add a negative sign in front of the number of some cards and make the sum of the six cards equal to 1, the formula will be given
- 13. Solution equation: 3x-11 / 16 = 5 / 16 Come on
- 14. No matter what the value of P is, does the equation (x-20) (X-30) - P square = 0 always have two different real roots
- 15. What is the number whose square root equals itself? What is the number whose square root equals itself?
- 16. There are six digital cards below. How many cards can you draw to ensure that there are both odd and even numbers? (123456) There are six digital cards below. At least a few cards should be drawn to ensure that there are both odd and even numbers? (123456) 2. How many cards must be drawn from a deck of playing cards (54) to ensure that there must be a spade?
- 17. 16 + 8x = 40 to solve the equation
- 18. The solutions of the equation | x + 5 | - | 3x-7 | = 1 are______ One
- 19. Proof: the equation (x-1) (X-2) = m has two unequal real roots
- 20. The second power of (a-b) multiplied by (M + n) - (- m-n) (B-A)