____-Jawabannya-____
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Jawaban Nomor 1 ::::::: y = x² dan y = 5x, substitusikan
x² = 5x
x² - 5x = 0
misal dengan diskriminannya
D = (-5)² - 4(1)(0) = 25
L = (D√D)/(6a²) = (25√25)/(6*1²)
= 125/6 satuan luas
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Jawaban Nomor 2::::::
Batas IntegraL
y = y
x = 2 - x²
x² + x - 2 = 0
(x + 2)(x - 1) = 0
x = -2 ; x = 1
∫((2 - x²) - x) dx [1...-2]
= ∫(-x² - x + 2) dx
= (-1/3 x³ - 1/2 x² + 2x
= (-1/3 - 1/2 + 2) - (2³/3 - 2²/2 + 2(-2))
= 1 1/6 - 8/3 + 6
= 27/6
= 4,5 satuan luas
Cara lain :
D = b² - 4ac = 1² - 4(1)(-2) = 9
L = D√D /6a²
L = 9√9 /6
L = 27/6 satuan luas
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Mohon Di Rate 5
/Jawaban Dari Google/
/Semoga Membantu/
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____-Jawabannya-____
___________________
Jawaban Nomor 1 ::::::: y = x² dan y = 5x, substitusikan
x² = 5x
x² - 5x = 0
misal dengan diskriminannya
D = (-5)² - 4(1)(0) = 25
L = (D√D)/(6a²) = (25√25)/(6*1²)
= 125/6 satuan luas
-------------------------------------------?-?-?-?-?-?-?-
Jawaban Nomor 2::::::
Batas IntegraL
y = y
x = 2 - x²
x² + x - 2 = 0
(x + 2)(x - 1) = 0
x = -2 ; x = 1
∫((2 - x²) - x) dx [1...-2]
= ∫(-x² - x + 2) dx
= (-1/3 x³ - 1/2 x² + 2x
= (-1/3 - 1/2 + 2) - (2³/3 - 2²/2 + 2(-2))
= 1 1/6 - 8/3 + 6
= 27/6
= 4,5 satuan luas
Cara lain :
x² + x - 2 = 0
D = b² - 4ac = 1² - 4(1)(-2) = 9
L = D√D /6a²
L = 9√9 /6
L = 27/6 satuan luas
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Penjelasan Nya: Semoga membantu Dan Dapat Mengerti.
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-Comments-
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Mohon Di Rate 5
/Jawaban Dari Google/
/Semoga Membantu/