ries converges or diverg verify that the condit n² +3 Σ(1²2+3³3 2n² + 1 n=1 72
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- find the series of cosx4 and (cosx)4< =] Q2. Find the Fourier series for the function f(x) = x- x² for – nFind the Fourier series of the function 7². TAKO ƒ (x) = {(x - π)², 0 < x <^ on the interval (-7,7) and use the result to show that 1 1 1 3² 4² 1+ 2² ++ MaFind the sum: 5. Check that ³0 (1) (3^4) = (?) 6. Check that Σ1-0 (7) (₂5₂) = (¹²) i=0 ANSWER ONLY 7. Can you guess a general formula from the pre- NUMBER 7 vious two problems?Please help me find cosh(2) and cosh(0)Q3-A) Solve the following equation: 3y² cos2x dy=y' sin 2x dx B) Find the radius and the convergence interval of the following series, then test at the values of x: (+1) (2x+1)" 2" (2n+1) nal