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Question Number 95597 by bagjamath last updated on 26/May/20

The value of  cosec^2  (π/7)+cosec^2  ((2π)/7)+cosec^2  ((3π)/7) is

$$\mathrm{The}\:\mathrm{value}\:\mathrm{of} \\ $$$$\mathrm{cosec}^{\mathrm{2}} \:\frac{\pi}{\mathrm{7}}+\mathrm{cosec}^{\mathrm{2}} \:\frac{\mathrm{2}\pi}{\mathrm{7}}+\mathrm{cosec}^{\mathrm{2}} \:\frac{\mathrm{3}\pi}{\mathrm{7}}\:\mathrm{is} \\ $$

Commented by MJS last updated on 26/May/20

8

$$\mathrm{8} \\ $$

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