dfrac{csc(x) + cot(x)}{sec(x) + tan(x)} = dfrac{sec(x) - tan(x)}{csc(x) - cot(x)} How do you verify sin(x) + cos(x) cot(x) = csc(x)? How do you simplify cot(x) - tan(x)? Prove that : tanx + cotx = 2sec(2x) When does x equal if sec(x) = 3? Solv...
1i) shows a more dramatic change than does the compressibility; namely it vanishes at 〈n〉 = 2 as a result of the anti-ferromagnetic Mott insulator. Further, the magnetization splits into peaks on either side of 〈n〉 = 1 that continues to be asymmetrical and hence is ...
f(x) = (2 + x)/(x^2 - 5x + 6)Consider the following function: f(x) = \left\{\begin{matrix} x^2 - 9x + 110, & x \leq 9\ 9x + 29, & x > 9 \end{matrix}\right. Discuss the continuity of the function at x = 9.D...
哪些为功率信号?哪些两者都不是?哪些是周期信号?若为周期信号，试确定其周期T。 (1) x(t)=4cos(2πt+π/6) -∞＜tr＜∞；(2) x(t)=5e -3t 0≤＜∞；(3) -∞＜t＜∞；(4) x(t)=1 0＜t＜5；(5) x(t)=e cos 2 10πt -∞＜t＜∞：(6)x(t)=2t 2 +3 0≤t＜∞。
If the file does not exist, it will be created. func Trim func Trim(s, set string) string Trim - Strip whitespace (or other characters) from the beginning and end of a string Original : https://www.php.net/manual/en/function.trim.php This function returns a string with whitespace ...
This is because of rounding errors. To see clearly how small these errors are, try plot2d(sin(x)^2+cos(x)^2-1,[x,0,6]); This gives you a useful scale for the y axis. Unfortunately, plot2d(sin(x)^2+cos(x)^2,...) does not -- it shows the min and max values as 1, ...
val fruits = listOf("apple", "banana", "orange") fun checkFruit(fruit: String) { when { fruits.contains(fruit) -> println("Yes, the list contains $fruit.") fruit.length > 5 -> println("The fruit name is longer than 5 characters.") else -> println("No, the list does not cont...
Another big part of my Sass (and Compass) use is tied to built-in mathematical functions (such as trigonometric functions),which are part of the CSS spec now, but not yet implemented in any browser. Sass doesn’t come with these functions either, but Compass does and this is why I ofte...
Given the function f defined by f(x) = x^3 - x^2 - 4x + 4 For which values of u is the function g(u) = \frac{1}{\sqrt {4u-1 - \sqrt{1 - u^2} defined? Given a function f, what does f ' represent? Is (2,4), (1,8), (2,-4) a function? Explain. ...
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