Calculus Archive: Questions from December 30, 2022
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Use the method of undetermined coefficients to solve the initial value problem. \[ y^{\prime \prime}+4 y=t^{2}+6 e^{t}, \quad y(0)=0, \quad y^{\prime}(0)=3 \] \[ \begin{array}{l} y=\frac{9}{10} \cos 22 answers -
4. \( \int_{\frac{\pi}{6}}^{\frac{\pi}{2}} \int_{0}^{\cos y} \int_{y}^{\pi-y} \sin (y+z) d z d x d y \)2 answers