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Solve cos(x) - sin(x) = sqrt(2)*sin(x).

 Jun 20, 2020
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Divide both sides by sin to get

Cot-1 = sqrt 2

arccot(1+sqrt2)=acot(2.414213562373095) = 22.5o

 Jun 20, 2020
edited by Guest  Jun 20, 2020
edited by Guest  Jun 20, 2020

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