3)find the distance between following pair of points (a + b, a - b), (b – a, a + b)
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Answer:
Required distance = 2√(a² + b² )
Step-by-step explanation:
Distance = √(x₂-x₁)² + (y₂-y₁)²
= √(b- a -a-b)² + (a+b-a+b)
= √(-2a)² +(2b)²
= √4a² +4b²
= 2 √(a² + b² )
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