ESPRESSIONI CON ANGOLI ASSOCIATI



sin(π - α) + cos(π/2 + α) + cos(π - α) + sin(π/2 + α) = 0   tg(π/2 + α)·tg(π + α) + tg(π/2 - α)·tgα  = 0
tg(π/2 + α)·tg(π + α) + tg(π/2 - α)·tgα = 0 sin(π/2 + α)·cos(π - α) - sin(π/2 + α)·cos(π + α) = 0
sin(-α)·sin(π - α) + cos(-α)·cos(π - α) + 1 =  0 tg(-α)·ctg(π/2 + α) - ctg²(π/2 - α) - tg(π - α) - tgα = 0
cos(π/2 + α)·cos(π - α) + sin(π/2 + α)·sin(π + α)  = 0 cos(5π/2 + α)·cos(5π/2 - α) - sin(π + α)·sin(π - α) = 0
sin(5π/4) + √2·cos(π/4) + √2·tg(π/4) + ctg(3π/4) = √2/2 √2cos(π/4) + 2√3·sin(2π/3) - √3·tg(π/3) + 3·ctg(2π/3) = 1 - √3
√3·tg(7π/6) + sin(π/4)·cosec(π/4) - 0.5·sec(π/3) + tg(7π/4) =  0
(2/√3)·tg(π/3) - (3/4)·ctg(π/4) + sec(π) - 0.5·sin(5π/6) + sin(11π/6) = -1/2
√2·sin(π/4) - √3·cos(5π/6) + tg(2π/3) - tg(-π/3) - cos(4π/3) = 3
√2·cos(-π/4) + 2√3·sin(2π/3) - √3·tg(π/3) - 3·tg(7π/6) = 1 - √3
2·sin(π/6) + 3·cos(π/3) + tg(4π/3) + 3·tg(2π/3) + 6·tg(7π/6) = 5/2
sin(π/6) + cos(π/6) + tg(π/6) + ctg(π/6) + sec(π/6) + cosec(π/6) = 5(√3+1)/2