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Jul 8, 2020 ... Jamia 2013: The value of the expression ( sin 3x/1+ cos x)+( cos 3x/1- sin x) is/are (A) √2 cos ( (π /4)-x ) (B) √2 cos ( (π /4)+x ) (C) √2 ... Sep 2, 2018 ... Cos^3(x)=(cos3x+3cosx) ÷4. Upvote ·. 9929. 91. Express each function as a trigonometric function of x. See Example 5.cos 3x. Ex 5.7, 7 Find the second order derivatives of the function e^6x cos⁡3x Let y = e^6x cos⁡3x Differentiating w.r.t.x . dy/dx = (d(e^6x " " cos⁡3x))/dx dy/dx ... Feb 18, 2017 ... Explanation: Note that cos3x can be rewritten as cos(2x+x) . ... Now use cos(A+B)=cosAcosB−sinAsinB . ... Apply cos2x=2cos2x−1 and sin2x=2sinxcosx . Yc = C₁+ C₂. e* sin(*) + (₂ ex cos(x). Ус. C3. ® Particular solution: look for solution in the form. Ур. As in (3x) + B cos (3x). Yp = 3 A cos (3x) - 3B Sin ... As x approaches negative infinity, the value of cos ⁡ 3 x will oscillate between -1 and 1. However, the denominator, x , will become increasingly negative. This ... Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, ... Apr 22, 2022 ... By clicking “Sign up”, you agree to our terms of service and acknowledge you have read our privacy policy. Sign up with Google. OR. Email. If ∫sinxsin3x+cos3xdx=αloge|1+tanx|+βloge|1−tanx+tan2x|+γtan−1(2tanx−1√3)+C, where C is constant of integration, then the value of 18(α+β+γ2) is · | · | · | · | ...