Pre Cal

6 Trig Functions

where the angle is called the argument.
Pronounce sin as "sine theta".

The sine function is one of the basic functions encountered in trigonometry

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where the angle is called the Pronounce cos as "cosine theta".

The tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side: so called because it can be represented as a line segment tangent to the circle, that is the line that touches the circle

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the angle is called the Pronounce tan as "tangent theta".

The cosecant csc(A), or cosec(A), is the reciprocal of sin(A); i.e. the ratio of the length of the hypotenuse to the length of the opposite side; so called because it is the secant of the complementary or co-angle

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Pronounce csc as "cosecant theta"

The tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side: so called because it can be represented as a line segment tangent to the circle

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Pronounce sec as "secant theta"

The cotangent cot(A) is the reciprocal of tan(A); i.e. the ratio of the length of the adjacent side to the length of the opposite side; so called because it is the tangent of the complementary or co-angle

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Pronounce cot as "cotangent theta".

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The secant sec(A) is the reciprocal of cos(A); i.e. the ratio of the length of the hypotenuse to the length of the adjacent side

mind maps

Mind Mapping applications are tools that allow students to develop a physical representation, a blueprint of their thinking that goes from the concrete to the more abstract. Mind Maps provide a clear and organized visual snapshot of how the ideas and information are outlined in one’s head. This way one can see where ideas need to be further developed and how all the information is linked.

function graphs