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Module 1: Trigonometric identities

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Reciprocal Circular Functions

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XSIQ
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Advanced Mathematics - Reciprocal circular functions (sec x, cosec x, cot
x)

Reciprocal circular functions (sec x, cosec x, cot x)

All turning points for sin and cos occur at either _y_=+1 or _y_=-1. Hence
the turning points for cosec and sec will be at _y_=+1 or _y_=-1.

Also: _x_ intercepts [1] in sin, cos and tan give asymptotes [2] in cosec,
sec and cot. Asymptotes in tan will give _x_ intercepts in cot.

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