Prove that \frac{ \sin \theta-2 \sin ^3 \theta}{2 \cos ^3 \theta-\cos \theta}=\tan \theta

ICSE Class X Math 2017 Solved Paper - Question 26

Question : 26 of 31

Marks: +1, -0

Prove that

\;{ sin \;θ-2 sin \;^3 θ}/{2 \cos ^3 θ-\cos θ}=\tan θ

Solution:

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