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cot-2-pi-7-cot-2-2pi-7-cot-2-7pi-2-answer-by-solve-




Question Number 129242 by Adel last updated on 14/Jan/21
cot^2 (π/7)+cot^2 ((2π)/7)+cot^2 ((7π)/2)=?  answer  by solve
$$\mathrm{cot}^{\mathrm{2}} \frac{\pi}{\mathrm{7}}+\mathrm{cot}^{\mathrm{2}} \frac{\mathrm{2}\pi}{\mathrm{7}}+\mathrm{cot}^{\mathrm{2}} \frac{\mathrm{7}\pi}{\mathrm{2}}=? \\ $$$$\mathrm{answer}\:\:\mathrm{by}\:\mathrm{solve} \\ $$
Commented by liberty last updated on 14/Jan/21
qn 128582
$$\mathrm{qn}\:\mathrm{128582} \\ $$

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