If x= y , y= z and z= x , then the value of x is
Mathematics · JEE Main · NTA Exams — Trigonometry
If \(\cos x=\tan y\), \(\cos y=\tan z\) and \(\cos z=\tan x\), then the value of \(\sin x\) is
- \(2 \cos 18^{\circ}\)
- \(\text { cos } 18^{\circ}\)
- \(\sin 18^{\circ}\)
- \(2 \sin 18^{\circ}\)
Answer
(D) 2 18^
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