вот надеюсь успеешь написать
10 ≤ a ≤ 11
15 ≤ b ≤ 16
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P = 2b + a
30 ≤ 2b ≤ 32
30 + 10 ≤ 2b + a ≤ 32 + 11
40 ≤ 2b + a ≤ 43
Ответ 40 ≤ P ≤ 43
Πх/6 = arctg√3 + πk , k ∈ Z
πx/6 = π/3 + πk , k ∈ Z
x/6 = 1/3 + k , k∈Z
x = 2 + 2k , k ∈Z
x = -2
1)27х^9 + 9x^6 + 3x^3 - <span>9x^6+3x³+1 = >>>27x^9 + 6x^3 +1<<<.
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