Ask your own question, for FREE!
Mathematics 12 Online
OpenStudy (anonymous):

Help plzz....!!! prove that |x+y| = |x| + |y| if xy >= 0

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!