Mathematics
Mathematics, 08.11.2019 06:31, brownzackery71

14. proof of the triangle inequality. (a) verify that the triangle inequality is true for several different real numbers x and y. be sure to have some examples where the real numbers are negative. (b) explain why the following proposition is true: for each real number r, r jrj. (c) now let x and y be real numbers. apply the result in part (14b) to both x and y. then add the corresponding parts of the two inequalities to obtain another inequality. use this to prove that jx c yj jxj c jyj

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14. proof of the triangle inequality. (a) verify that the triangle inequality is true for several di...

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