C, C++, C#, c, c), c�, +∞); C(-∞, c..., = -c ., ∠C, C), c}, (C), C =, C%, (c), c -,  C, C ?, (C, C=?, C=α, C)....., c .., c++), +∞) ; C=(-∞, C',  C, C ), c ∈ ℝ, (°C), C. ;, C., C. :, C. =, (C). π, = c, c) ∅, c., C = ?, c) ;, c) :..........., c = ……………, c = ..............., C. →, C. @, c);, c) ., c)., c., C. ;, (c): ……………., c) ………………………………., c) …………….., c......................................., C. ., C. (α) // (β)., C. = :, c) – ? ∈ ?;, C., C., c = ….., C. ., C. { } → [ ] → ( )., c) …………………………………………………………………………………………., c) ……………………………………………………………………, c) …………………………………………………………………………………………, c) ……………………………………………………………………….., c) …………………………., C. ℝ;, C. β. γ. δ., C. +∞., c. ………………………………………., C. π., ∠C = α, C. (α) ∥ (β)., c. ………………………….., c\), (C).