Basic trig functions — definition?
Ratios of sides in right triangles.
Sine — definition?
Opposite over hypotenuse in right triangle.
Reciprocal functions — role?
Inverse relationships to primary trig functions.
Cosine — role?
Adjacent over hypotenuse ratio.
Unit circle — purpose?
Defines trig functions for all angles geometrically.
Tangent — difference from cot?
Tangent opp/adj; cot is reciprocal.
Reciprocal functions — examples?
Csc, sec, cot are reciprocals of sin, cos, tan.
Unit circle — significance?
Defines trig functions for all angles.
Period of sine/cosine?
Period is 2π.
Tangent — undefined where?
Where cosine equals zero.
Teste dein Wissen mit 9 Fragen zu Mastering Trigonometric Functions.
1. What does the sine (sin) of an angle in a right triangle represent?
2. What is the value of \\ sin(45°) according to the key values derived from special angles?
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