Prove that (sec8θ−1)/(sec4θ−1)=tan8θ/tan2θ

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NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 6: Prove that { \displaystyle \frac{sec8\theta-1}{sec4\theta-1}=\frac{tan8\theta}{tan2\theta}}

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