Question

int e^(x/sqrt(2))*cos x/sqrt(2)dx= 1) e^(x/sqrt(2))*sin(x/sqrt(2)-pi/4)+c 2) e^(x/sqrt(2))*sin(x/sqrt(2)-pi/4)+c 3) e^(x/sqrt(2))*cos(x/sqrt(2)+pi/4)+c 4) e^(x/sqrt(2))*cos(x/sqrt(2)-pi/4)+c​

Answer 1

Answer:

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