Solve equations using reciprocal trig identities
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What are the reciprocal trigonometric functions?
The reciprocal trigonometric functions are secant (sec), cosecant (cosec) and tangent (tan).
\(\begin{array}{l}\sec \theta = \frac{1}{{\cos \theta }}\\{\rm{cosec}}\theta = \frac{1}{{\sin \theta }}\\\cot \theta = \frac{1}{{\tan \theta }}\end{array}\)
Sec, cosec and cot trig ratios and graphs
C3 Edexcel June 2012 Q5(a)(b)
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