Assume that Q, R, and S are the angles of a triangle, with opposite sides q, r, and s respectively. Select all of the following that represent the law of cosines.

Question

Revolt · Accepted Answer

q2 = r2 + s2 – 2rscos(Q); r2 = q2 + s2 – 2qscos(R); s2 = q2 + r2 – 2qrcos(S)

Law of Cosines

Assume that Q, R, and S are the angles of a triangle, with opposite sides q, r, and s respectively. Select all of the following that represent the law of cosines.

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