Упростить:
1_ (Sin(3/2*π + a) + Sin(2π + a))/(2Cos(-a)*Sin(-a) + 1)
2_ (Sin(2a))/(1 + Cos(2a))
1_ (Sin(3/2*π + a) + Sin(2π + a))/(2Cos(-a)*Sin(-a) + 1)
2_ (Sin(2a))/(1 + Cos(2a))
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Answers & Comments
1. -cosx+sinx\2sin(-2x)+1