Jawab:
Penjelasan dengan langkah-langkah:
lim ((tan x + tan y)/(((x² - y²)/(-2xy²)) . (1 - tan x . tan y))
x→-y
= lim ((tan (x + y)) . (-2xy) / ((x + y) . (x - y))
= (-2 . (-y) . (-y)) / (-y - y)
= -2 . y² / (-2 . y)
= y
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Jawab:
Penjelasan dengan langkah-langkah:
lim ((tan x + tan y)/(((x² - y²)/(-2xy²)) . (1 - tan x . tan y))
x→-y
= lim ((tan (x + y)) . (-2xy) / ((x + y) . (x - y))
x→-y
= (-2 . (-y) . (-y)) / (-y - y)
= -2 . y² / (-2 . y)
= y