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Ratio

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Consider a point with rectangular coordinates (x,y). If x<0 then the polar coordinates of the point are (r,θ) where r≥0 and −π/2≤θ<3π/2and: r= θ= If x≥0 then the polar coordinates of the point are (r,θ) where r≥0 and −π/2≤θ<3π/2 and: r= θ=​

SG chevron_right Primary 1 chevron_right Geometry

Law of sine /cosine abd area of triangle

SG chevron_right Primary 1 chevron_right Geometry

Law of sine/cosine and area of trinagle

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