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Sine, Cosine and Tangent - Math is Fun Sine, Cosine and Tangent (often shortened to sin, cos and tan) are each a ratio of sides of a right angled triangle: To calculate them: Divide the length of one side by another side Example: What is the sine of 35°? Using this triangle (lengths are only to one decimal place): = 0 57 = 0 82 = 0 70
Tangent - Wikipedia In geometry, the tangent line (or simply tangent) to a plane curve at a given point is, intuitively, the straight line that "just touches" the curve at that point Leibniz defined it as the line through a pair of infinitely close points on the curve
What is a tangent? - gauthmath. com In geometry, a tangent is a line that intersects a curve at a single point, called the point of tangency It's crucial to remember that the tangent line doesn't cross the curve at that point; it simply touches it