其中,sin_expansion(x, n=10)计算sin(x)的值,cos_expansion(x, n=10)计算cos(x)的值。可以通过调整$n$的值来控制函数的精度,一般情况下$n$越大,计算结果越精确。 总结 使用Expansion计算sin(x)和cos(x)的值可以得到一个比较精确的近似值,适用于大多数实际应用场景。当然,Expansion方法并不是唯一的计算si...
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代数输入 三角输入 微积分输入 矩阵输入 sin(x)=1 求解x 的值 x=2πn1+2π n1∈Z 图表 测验 Trigonometry sin(x)=1 示例
Common trigonometric functions have periods that are multiples of π; for example, sine and cosine have period 2π, so for any angle θ and any integer k, displaystylesintheta=sinleft(theta+2pi kright)textandcostheta=cosleft(theta+2pi kright). Many of the appearances of π in the ...
J. Carpenter, Zeros of the partial sums of cos (z) and sin (z). I, Numerical Algorithms 25 (2000), no. 1-4, 363-375.R. S. Varga and A. J. Carpenter. Zeros of the partial sums of cos(z) and sin(z). II. Numer. Math., 90(2):371-400, 2001....
Sin and Cos formulas are given in this article. You can find basic trigonometry formulas, identities, triple angle and double angle formulas. Learn more trigonometry formulas at BYJU'S.
A binomial is a polynomial with a sum of two terms. The equation of binomial expansion is (x+y)n=nC0xn+nC1xn−1⋅y+nC2xn−2⋅y2+⋯+nCnyn.Answer and Explanation: Use de Moivre's theorem, that is, (cosx+isinx)n=cos(nx)+isin(nx), where n......
cos(x+y)cosy+ sin(x+y)siny Answer 4. Prove that cos(30o+x)=3cosx−sinx2\displaystyle \cos{{\left({30}^\text{o}+{x}\right)}}=\frac{{\sqrt{{3}} \cos{{x}}- \sin{{x}}}{{2}}cos(30o+x)=23cosx−sinx Answer...
y = \frac{\sin x + \cos x}{\sin x - \cos x} Find the derivative of functions: y = \frac{\sin x + \cos x}{\sin x - \cos x} Find the derivative of y=3n-2. Find the first, second, and third derivative of: sin 3x^2 ? Calculate the derivative the following functions: ...
If the middle term in the binomial expansion of ((1)/(x) + x sin x )^(10) is ( 63)/( 8) , then the value of 6sin^(2) x +sin x -2 is