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Автор - horandarklarries

НАЙТИ ОБЛАСТЬ ОПРЕДЕЛЕНИЯ ФУНКЦИИ
y=ln(x^2+10x+21)+корень из(64-x^2)

Ответ

Автор - vladbaranov201p67bwg

f(x) = ln(x² + 10x + 21) + √(64 - x²)

{(x + 3)(x + 7) > 0,

{(8 - x)(8 + x) ⩾ 0

{ x ∈ (-∞; -7) ∪ (-3; +∞),

{ x ∈ [-8; 8]

D(f) = [-8; -7) ∪ (-3; 8]

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