Prove that: \( \sec \left(\frac{3 \pi}{2}-x\right) \sec \left(x-\frac{5 \pi}{2}\right)+\tan \lef...

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Prove that: \( \sec \left(\frac{3 \pi}{2}-x\right) \sec \left(x-\frac{5 \pi}{2}\right)+\tan \left(\frac{5 \pi}{2}+x\right) \tan \left(x-\frac{3 \pi}{2}\right)=-1 \)
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