the equation sinx+cos(k+x)+cos(k−x)=2 has real solutions? Video SolutionText SolutionVerified by Experts sinx+cos(k+x)+cos(k−x)=2 ⇒sinx+2cos(k+x+k−x2)cos(k+x−k+x2)=2 ⇒sinx+2coskcosx=2 ⇒√1+4cos2k(1√1+4cos2ksinx+2cosk√1+4cos2kcosx)=2 Let sin...
show that f(x,y)= e^x cos y + e^y sin x satisfies the la place equation Suppose that a particular function f satisfies f"(x) = -(2 sin(x) + 2 cos(x)), f(0) = -3, f'(0) = 0. Find f(x). Find the function f(x) such that f'(x)/f(...
∵1 = tan(π/4) = 2tan(π/8)/{1 - [tan(π/8)]^2}，解得tan(π/8) = √2 - 1，负值舍 ∴当x满足sinx+cosx =√2时，tan(x/2)值为 √2 - 1
百度试题 结果1 题目Graph the function.f(x)=sinx+cosx 相关知识点: 试题来源: 解析 yA 1 0 7 7 X -- ) 反馈 收藏
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百度试题 结果1 题目the curve y=sinx y=cosxand the x-axis enclose aegin shown shaded in 相关知识点: 试题来源: 解析 曲线y=sinx, y=cosx和x轴围成的阴影部分。反馈 收藏
dv/dt=g−v2. 44. Show that v(t)=√gtanh(√gt)v(t)=gtanh(gt) satisfies this equation. Show Solution 45. Derive the previous expression for v(t)v(t) by integrating dvg−v2=dt.dvg−v2=dt. 46. [T] Estimate how far a body has fallen in 12 seconds by finding the area ...
Verify the identity. cot x = 1 + cos 2 x / sin 2 x Verify the identity. cot (x) + 1 = cos (x) (csc (x) + sec (x)) Verify the Identity: csc (x) + cot (x) = {sin (x)} / {1 - cos (x)} Verify that the equation is an identity. (1 + csc(-x))(1 + csc ...
Find the equation of the curve whose slope is x−4 and that it passes through the point (8,8). (Show all you work.) Using Antiderivatives to Find an Equation of a Curve Given the Slope While the formal application of antiderivatives is ...
This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts.See AnswerQuestion: how to find the annihilator of sinx and cosx and what about when you have an expression such as x + e^x or (sinx)(e^-x...