For students of class 9-10 (age 14-16)
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- Joined: Sat Feb 11, 2017 4:06 pm
What is the area bounded by the region $$|x+y|+|x-y|=4$$.Where $$x,y$$ are real numbers.
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- Joined: Thu Jan 20, 2011 6:57 pm
Taking four pairs of sign for $(x, y)$ and considering magnitude of $x$ vs. that of $y$ in each of the four cases, you would get a square as the bounded region. It should then be a matter of moments to compute the area.