Question

Пожалуйста, срочно нужно! №966 и №968​

Answer 1

$1. \: a + b = - 6.3 + 2.7 = - 3.6 \\ |a| + b = | - 6.3| + 2.7 = 6.3 + 2.7 = 9 \\ a + |b| = - 6.3 + |2.7| = -6.3 + 2.7 = - 3.6 \\ |a + b| = | - 6.3 + 2.7| = | - 3.6| = 3.6 \\ |a| + |b| = | - 6.3| + |2.7| = 6.3 + 2.7 = 9 \\ 2. \: 1) \: |a| + |b| = | - 3| + | - 7| = 3 + 7 = 10 \\ |a + b| = | - 3 - 7| = | - 10| = 10 \\ 2) \: |a| + |b| = | - 4| + |10| = 4 + 10 = 14 \\ |a + b| = | - 4 + 7| = |3| = 3 \\ 3) \: |a | + | b| = |7.2 | + | 2.8| = 7.2 + 2.8 = 10 \\ |a + b| = |7.2 + 2.8| = |10| = 10$