DRYING
The secant is a line that cuts a circle in 2 points. As these points are close and distance is reduced to zero, the line becomes the tangent line name. Cotangent
The cotangent , abbreviated cot, cta, or cotg, trigonometric ratio is the reciprocal of the tangent, or even its inverse multiplicative
cosecant
The Cosecant (abbreviated as csc or cosec ) trigonometric ratio is the reciprocal of the breast, or also its multiplicative inverse:
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