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BdMO Online Forum • View topic - AREA

AREA

For students of class 9-10 (age 14-16)
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AREA

Post Number:#1  Unread postby jayon_2 » Mon Oct 30, 2017 2:31 pm

What is the area bounded by the region $$|x+y|+|x-y|=4$$.Where $$x,y$$ are real numbers.
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Re: AREA

Post Number:#2  Unread postby SMMamun » Wed Nov 01, 2017 7:15 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.
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