1) Given that x and y are real numbers and x < 0,y > 0 determine with a clear explanation whether the statements are true or false. a) The expression x - y is always negative. b) The expression x + y is always positive. c) The distance between x and y is x – y d) The statement |x + y[ = x + y is always true.

1) Given that x and y are real numbers and x < 0,y > 0 determine with a clear explanation whether the statements are true or false. a) The expression x - y is always negative. b) The expression x + y is always positive. c) The distance between x and y is x – y d) The statement |x + y[ = x + y is always true.

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter2: Parallel Lines

Section2.2: Indirect Proof

Problem 11E: Which of the following statements would you prove by the indirect method? a In triangle ABC, if...

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