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प्रश्न
Find the distance between the following point :
(p+q,p-q) and (p-q, p-q)
उत्तर
A (p + q, p - q) , B (p - q, p - q)
AB = `sqrt (("p - q - p")^2 + ("p - q - p + q")^2)`
`= sqrt (4"q"^2 + 0)`
= 2q units
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