Can someone tell my what cos, sin and tan actually measure?
In: Mathematics
They measure the ratio of the sides of a right triangle as a function of another angle in the triangle.
Sin and cos are related, as the two non-right-angle angles in a triangle always add to 90. The sin of one angle is the cos of the other angle. The tan is the ratio of the two sides that are not the hypotenuse, and the tan from one angle is 1/tan from the other angle.
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