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Reciprocal trig functions
The functions secx, cosecx and cotx, domain, range & graphs
The functions secx, cosecx and cotx, domain, range & graphs
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The reciprocal trig functions are functions of the form f(x)1, where f is sin,cos or tan. The three reciprocal trig functions are:
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Domain: x=2(2k+1)π=±2π,±23π…
Range: secx≤−1 or secx≥1.
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Domain: x=kπ=0,±π,±2π…
Range: cosecx≤−1 or cosecx≥1.
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Domain: x=kπ=0,±π,±2π…
Range: cotx∈R.