Reducir:
J=cos(45°+x)+cos(45-x)/senx
M=sen(α+x)+sen(α-x)/cosx
J=cos(45°+x)+cos(45-x)/senx
M=sen(α+x)+sen(α-x)/cosx
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cos(45+x) = cos45 cosx - sen45 senx
cos(45-x) = cos45 cosx+sen45 senx; sumamos
J = 2 cos45 cosx / senx = √2 . cotgx
El otro:
sen(α+x) = senα cosx + senx cosα
sen(α-x) = senα cosx - senx cosα: sumamos
M = 2 senα cosx / cos x = 2 senα
Saludos Herminio