![](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>)
What is the monotone decreasing interval of the function y = e ^ xsinx in (- π. π)?
Choose as the answer, baidu Hi to tell you in detail
Now I'm afraid I won't get a lot of money
Is y = xsinx a decreasing function
Y '= SiNx + xcosx, obviously not always greater than or equal to 0, not a decreasing function
If SiNx = cos2x, then TaNx =?
sinx=cos2x=1-2sinx*sinx
2sinx*sinx+sinx-1=0
(sinx+1)(2sinx-1)=0
SiNx = 1 / 2 or - 1
Cosx = + √ 3 / 2 or - √ 3 / 2 or 0
TaNx = + √ 3 / 3 or - √ 3 / 3 or absent
RELATED INFORMATIONS
- 1. Given f (1 + SiNx) = 2 + SiNx + cos2x, find f (x) Let u = 1 + SiNx, then SiNx = U-1 (0 ≤ u ≤ 2), then f (U) = - U2 + 3U + 1 (0 ≤ u ≤ 2) So f (x) = - x2 + 3x + 1 (0 ≤ u ≤ 2) How does [f (U) = - U2 + 3U + 1] come from? Ask for advice!
- 2. Finding the square plus one of SiNx given TaNx = 2
- 3. Y '' + y = x ^ 2 differential equation Y '' + y = x ^ 2 differential equation
- 4. How to find the general solution of first order linear differential equation
- 5. Finding the general solution of the differential equation XY '' + y '= 0
- 6. What is the general solution of the differential equation y '' + y '^ 2 = 2E ^ (- y)?
- 7. The general solution of Y "+ y = x + cosx
- 8. Differential equation.. Y "+ y = cosx for general solution
- 9. General solution of differential equation y "+ y = ex General solution of differential equation y "+ y = e ^ x
- 10. Finding the general solution of differential function y "- 2Y = e ^ x That's the process of finding the derivative of Y
- 11. How to establish differential equation function in MATLAB How to establish differential equation function in MATLAB, such as: dy / DX = XY, (when x = 0, y = 1), in 0=
- 12. Y = 1 / x + 2 √ x, y = xsin2x, y = x (flat) Find the differential of the function y=1/x+2√x y=xsin2x Y = x (square) e (2x Square)
- 13. When x tends to 0, (1 + SiNx) ^ (1 / 3) - 1 is equivalent to
- 14. Differential mean value theorem?
- 15. The solution of inequality proof of differential mean value theorem How to prove | arctanx arctany|
- 16. Using the differential mean value theorem to prove that the equation X5 + X-1 = 0 has only one positive root?
- 17. Find the differential process of y = ln (cosx + LNX) more carefully and faster
- 18. What is the period of the function y = cos3x?
- 19. Find the period of this function y = 2 + cos3x
- 20. Using differential to find the approximate value of 7.9 under the third root sign It's better to write it down on paper,