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Write the area of the figure formed by t...

Write the area of the figure formed by the lines `a|x|+b|y|+c=0.`

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Given,
`a|x|+b|y|+c=0`
it can be written as,
`ax+by+c=0->(1) `
`− ax+by−c=0 ->(2)`
`ax−by+c=0 ->(3) `
`ax−by−c=0 ->(4)` ...
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