课前热身1将下列函数化为Asin(ox+φ)+b或Acos(ax+φ)+b的形式(If(x)=sinx+co8x 2) f(x)= sin 2x+ √3cos 2x )
If sinx+siny=3(cosy−cosx), then the value of sin3x+sin3y is A1 B−1 C0 Dnone of theseSubmit If (sinx+siny)=a and (cosx+cosy)=b what is the value of sin x sin y + cos x cos y ? Aa+b−ab Ba+b+ab Ca2+b2−2 Da2+b2−22Submit If sin (x+y)=cos (x-y...
We have (2+sinx" dx")/(y+1" dx")=-cos x int("dy")/("y+1")=-int("cos x dx")/("2+sin x") log |y+1|=-log|2+sin x|+logC =log|(C)/("2+ sin x")| y+1=(C)/("2+ sin x") Now y+1(4)/("2+ sin x") "at x"=0,y=1, C=4 "at x"=(pi)/(2),"...
Answer to: Evaluate \frac{dy}{dx} at the point (1,2), if y + cos(2x - y) = 3. By signing up, you'll get thousands of step-by-step solutions to...
先解y=√sin(cosx)的定义域 sin(cosx)≥0 2kπ≤cosx≤π+2kπ 当k=0, 0≤cosx≤π,此时即cosx≥0,∴x∈[-π/2 +2kπ,π/2 +2kπ] 当k≠0,x∈空集 ∴[-π/2 +2kπ,π/2 +2kπ] 再解y=√cos(sin x)的定义域 cos(sinx)≥0 ∴-π/2 +2kπ≤sinx≤π/2 +2kπ 当k=0,-π/...
百度试题 结果1 题目If y = (cos^2x)/(1+sinx), then (dy)/(dx) = A: −sin xB: cos xC: −2 sin xD: −cos x 相关知识点: 试题来源: 解析 DNone 反馈 收藏
=[cos(a+b)+cos(a-b)]sinacosb=[sin(a+b)+sin(a-b)]cosasinb=[sin(a+b)-sin(a-b)]还需要什么跟我说 初三二次函数辨析? 1个回答2025-02-03 23:56 二次函数,一次函数都属于幂函数的一种 幂函数:y=x^k 二次函数也就是k=1时, 一次函数是k=1时。 二次函数会比一次函数复杂一点 也是高中...
e.3cos3x Computing the Derivative of the Function: The symbol for the derivative of the function isdydx=y′(x). To compute the derivative of the composite power function, we will apply the chain rule, the common derivative, and the p...
If y = \sin^3 x, then \frac{dy}{dx}= a. 3 \cos^2 x \sin x b. 3 \sin^2 x \cos x c. 3 \sin^2 x d. 3 \cos^2 x e. 3 \cos^3 x Differentiate: y = x^2 cos^2 x Differentiate: f(x) = 1 - cos 2x + 2 cos^2 ...
cosθ+sinx(5)lim_(x→0^+(x,cos^2x)sinx^2(6)lim_(n→∞)(1+sin^(3+n/3(m+n)(m+n)^2(7)(BC)/(BG)=(BC)/(AB)(8)lim_(x→0)_(y→0)(x^2+x)/(x+m)(9)lim_((x,y)→(0,0))(0,0,1+1)=(1,1+3)(1+1)(10)lim_((x,y)(x+1)(1+sinx+(1+sinx)(si...