Recent content by fatedquest

Thanks, hung_mat, I finally understand what you were trying to say.

Sorry, I really can't figure out what's the other equation I'm assuming that will make the sum 0. Please help.

Thanks for you help, but I'm still now clear on the question. @ Tedjn. Yes, what I was trying to say was what you wrote in the second paragraph. By decrease I meant to say move away from the maximum value the lhs can achieve. @ I understand the part where there will be an equality if all the...

Homework Statement |x + y + z| \le |x| + |y| + |z|. Indicate when the equality holds, and prove your statement. Homework Equations Answer in the books says it hold only when x, y, and z are all of the same sign. The Attempt at a Solution The value on the rhs of the eq will keep...