Question

the distance between the point (a+b,a-b ) and( a-b,a+b) are

Answer 1

√(x2-x1)²+(y2-y1)²

√(a+b-a+b)+(a+b-b+a)

√4b²+4a²

2√b²+a²

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Answer 2

dis= root of [(a-b)-(a+b)]whole sq. + [(a+b)-(a-b)]whole sq

   

    = root of [(a-b-a-b)sq. + (a+b-a+b)sq.]

    = root of [-2b]sq + [2b]sq

   

    =root of 8b sq.

   

    =2b root2 units....

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