The-value-of-cosec-2-pi-7-cosec-2-2pi-7-cosec-2-3pi-7-is-

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

The value of

{cosec}^{2} \frac{π}{7} + {cosec}^{2} \frac{2 π}{7} + {cosec}^{2} \frac{3 π}{7} is

Commented by MJS last updated on 26/May/20

8

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