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Ticket: 5c4c91544f3b8 chefernanda
26 Jan 23:56

diketahu :

a + b + c + d = 0

abc + abd + acd + bcd = 3

tentukan nilai dari a2 + b2 + c2 + d2.

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wiwiktri
21 Feb 09:57

kucoba, malah dapetnya a3 + b3 + c3 + d3.

 
 

 

chefernanda
24 Feb 10:56

iya, kalau a3 + b3 + c3 + d3 dapatnya 9.