a生活的最高境界是宽容,相处的最高境界是尊重 The life highest boundary is tolerant, is together the highest boundary is the respect[translate] a容易证明,绝对值函数满足三角不等式 Easy to prove that, the absolute value function satisfies the triangle inequality[translate]...
Then, use the reverse triangle inequality | |x| - |y| | \leq | x - y | to an \epsilon/N proof that \l Let S = \{ x \in \mathbb{R}^3 : \ x_3 = 0\} \text{ and } S = \{ x\in\mathbb{R}^3: \ x_1 = 0 \} . a) Prove or disprove that S \perp S . b)...
Then, use the reverse triangle inequality | |x| - |y| | \leq | x - y | to an \epsilon/N proof that \l Prove that \cosh(\sinh x) less than \sinh(\cosh x) for all x. For each integer n, let A_n = { x in Q : n less than x less than n + 1 }. Prove that...