R^2=cos{\theta}

Type your math problem... r^2=cos{\theta}

Question

r^{2} = cos (θ)

Solve the equation

θ = {arccos (r^{2}) + 2 kπ - arccos (r^{2}) + 2 kπ, k \in Z

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x^{6} + 3 x^{4} y^{2} + 3 x^{2} y^{4} + y^{6} = x^{2}

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