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Is your child losing their way with their online math course? One on One, student and tutor could be just what your child needs to help them master the course! With San Diego County schools continuing online teaching this fall, …

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C^2 = A^2 + B^2 -2AB cosC

  The Laws of Sines and Cosines. The Law of Sines establishes a relationship between the angles and the side lengths of ?ABC: a/sin(A) = b/sin(B) = c/sin(C).

An imaginary number is a complex number that can be written as a real number multiplied by the imaginary unit i, which is defined by its property i² = ?1. The square of an imaginary number bi is ?b². For …

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