SI X + y = 8, et XY = 15 trouvez x ^ 2 + y ^ 2.
Answers
Answered by
18
◙ Il est donné que, ◙
x + y = 8 et xy = 15.
◙ Pour trouver ◙
La valeur de x² + y².
◙ Solution ◙
Nous savons,
x² + y² = (x + y) ² - 2xy
⇒x² + y² = (8) ² - 2 (15)
⇒x² + y² = 64 - 30
Answered by
0
Similar questions
English,
4 months ago
Computer Science,
9 months ago
Math,
9 months ago
Political Science,
11 months ago
Social Sciences,
11 months ago