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csc-2-pi-7-csc-2-2pi-7-csc-2-3pi-7-




Question Number 127787 by bemath last updated on 02/Jan/21
 csc^2 ((π/7))+csc^2 (((2π)/7))+csc^2 (((3π)/7)) =?
csc2(π7)+csc2(2π7)+csc2(3π7)=?

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