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Question Number 166169 by cortano1 last updated on 14/Feb/22

$${\sin }^7\left(\mathrm{x}\right)+\frac{1}{\sin {}^3\left(\mathrm{x}\right)}=\cos {}^7\left(\mathrm{x}\right)+\frac{1}{\cos {}^3\left(\mathrm{x}\right)}$$$$$$

Answered by greogoury55 last updated on 14/Feb/22

$$x=45°$$

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