sophinahopere sophinahopere

18-10-2016
Mathematics

contestada

Why is -csc^2 (pi/4) = -2 ?

Respuesta :

18-10-2016

sin(pi/4) = 1/sqrt(2)
csc(pi/4) = sqrt(2)
csc^2(pi/4) = 2
-csc^2(pi/4) = -2

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