Sagot :
m² - 1/2 = (m - √(1/2)) (m + √(1/2))
soit
m - inf -√(1/2) +√(1/2) + inf
m-√(1/2) - - 0 +
m+√(1/2) - 0 + +
final + 0 - 0 +
m² - 1/2 = (m - √(1/2)) (m + √(1/2))
soit
m - inf -√(1/2) +√(1/2) + inf
m-√(1/2) - - 0 +
m+√(1/2) - 0 + +
final + 0 - 0 +