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sin-7-x-1-sin-3-x-cos-7-x-1-cos-3-x-




Question Number 166169 by cortano1 last updated on 14/Feb/22
  sin^7 (x)+(1/(sin^3 (x)))=cos^7 (x)+(1/(cos^3 (x)))
$$\:\:\mathrm{sin}^{\mathrm{7}} \left(\mathrm{x}\right)+\frac{\mathrm{1}}{\mathrm{sin}\:^{\mathrm{3}} \left(\mathrm{x}\right)}=\mathrm{cos}\:^{\mathrm{7}} \left(\mathrm{x}\right)+\frac{\mathrm{1}}{\mathrm{cos}\:^{\mathrm{3}} \left(\mathrm{x}\right)} \\ $$$$ \\ $$
Answered by greogoury55 last updated on 14/Feb/22
 x=45°
$$\:{x}=\mathrm{45}° \\ $$

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